Why Some Products Sell More Than Others Even When They’re Similar

Walk into a hypermarket and look at a crowded category for 10 seconds.

Dozens of products. Similar prices. Similar packaging. Similar claims. And yet, some products consistently leave the shelf faster than others.

Why? Most people assume the answer is brand loyalty or pricing. And yes, those matter. But inside a store, another factor quietly shapes thousands of purchase decisions every day: visibility.

That’s where secondary placements become one of the most powerful tools in modern retail execution.

And despite years of ecommerce growth, shelf visibility still drives enormous influence over shopper behavior.

The Attention Problem in Modern Retail

Retail today is overloaded with visual competition.

Stores are fuller, promotions are everywhere, while shopper attention spans are shorter. And consumers are making faster decisions than ever.

Research shows that shoppers increasingly rely on mental shortcuts and visual cues when navigating stores. Most buying decisions are not deeply analytical. They happen quickly, often under time pressure.

This is especially true in FMCG categories, where many purchases are habitual, emotional, or impulse-driven.

People don’t carefully compare every product on a shelf, but they react to what catches their attention first. And this changes the role of product placement completely.

What Are Secondary Placements?

Secondary placements are displays positioned outside a product’s primary shelf location. These include:

• Endcaps

• Pallet islands

• Checkout displays

• Freestanding units

• Promotional stacks

• Cross-category displays

• Countertop placements

They exist for one reason: to interrupt shopping autopilot.

A shopper walking past an aisle may completely ignore a product sitting in its regular category position.

But place that same product near checkout, in a seasonal display, beside a complementary category, or in a high-traffic transition zone, and suddenly visibility changes.

And visibility changes behavior.

Why Secondary Placements Work So Well

The psychology behind secondary placements is surprisingly simple: they reduce friction. A well-positioned display helps shoppers:

• discover products faster

• process decisions more easily

• and make purchases with less effort

This matters because retail environments are cognitively exhausting.

According to research published by Shop! Association (formerly POPAI), around 76% of purchase decisions are still made in-store. That means the physical shopping environment still heavily shapes what ends up in the basket.

Secondary placements create:

• visual interruption

• category disruption

• product recall

• urgency

• impulse opportunities.

And the numbers behind them are difficult to ignore. According to Oracle Retail, endcap displays can increase product sales by up to 93% compared to regular shelf placement.

Why Visibility Matters Even More in 2026

The retail environment has changed significantly over the last few years.

Consumers are more price-sensitive. Loyalty is weaker. Promotional pressure is higher. And shopping behavior is more fragmented.

At the same time:

• inflation changed purchasing habits,

• discount retail expanded aggressively,

• and shoppers became more selective with spending.

This means brands are no longer competing only on product quality. They’re competing on attention. According to Inmar Intelligence, 80% of consumers actively look for promotions while shopping in-store. In other words: if shoppers are already open to switching brands, visibility becomes even more important.

Because shoppers cannot buy what they do not notice.

Why Some Retail Displays Fail Completely

Not all secondary placements succeed. And this is where brands often lose money without realizing it.

A display may technically exist in-store while delivering almost no commercial value.

Why? Because execution quality matters.

Common problems include:

• poor placement positioning

• displays blocked by traffic flow

• inconsistent replenishment

• unclear promotional messaging

• wrong category adjacency

• weak seasonal relevance

• or inconsistent implementation between stores

One of the biggest mistakes retail teams make is evaluating displays only by installation.

“Was the display installed?” is not the right question anymore. The real questions are:

• Was it visible?

• Was it stocked?

• Did shoppers interact with it?

• Did it improve conversion?

• Did it perform equally across regions and store formats?

  
  

The Store Format Problem Most Brands Ignore

What works inside a hypermarket may fail completely inside:

• a proximity store

• a convenience chain

• a discount format

• or a rural independent retailer

This is one of the biggest gaps we see in retail execution.

Many brands still deploy the same display logic nationally, without adapting to:

• shopper mission

• store size

• traffic flow

• demographic profile

• or category behavior

But shopper behavior changes dramatically depending on context. For example:

• Urban shoppers move faster and often shop for convenience

• Rural shoppers may spend longer in-store and buy differently

• Tourist areas respond differently to seasonal activations

• Convenience stores prioritize speed and accessibility

• Hypermarkets rely more heavily on planned shopping behavior

  
  

What Retail Teams Should Actually Measure

Modern retail visibility cannot rely on assumptions anymore. Brands need to measure:

• display visibility

• execution consistency

• stock availability

• pricing accuracy

• shopper engagement

• placement ROI

The most advanced retail teams now track:

• share of secondary placement

• compliance rates

• display quality scores

• visibility conditions

• category adjacency performance

• and uplift by store type

The goal is: having displays that actually influence sales.

Secondary Placements and Impulse Buying

One of the biggest reasons secondary placements remain effective is impulse behavior.  Impulse buying is still a major driver in physical retail. And they rarely happen because shoppers planned them carefully.

They happen because: the product was visible, the placement felt relevant, the timing was right, or the display reduced decision effort.

Cross-category placement is especially powerful here.

Examples: snacks near beverages, sunscreen near seasonal displays, pasta sauce beside pasta, batteries near electronics, OTC products near checkout zones. These combinations increase basket value naturally because they mirror real-life shopper logic.

What We See in the Field at RDM

At Retail Data Monitoring, one thing becomes clear very quickly when analyzing in-store execution: visibility varies massively from store to store. Even inside the same retail chain.

A perfectly designed campaign can lose effectiveness because:

• implementation differs regionally,

• displays deteriorate quickly,

• placement conditions change,

• or store staff prioritize space differently.

Our Secondary Placements Analytics service helps brands measure:

• where displays exist,

• how they are implemented,

• how visibility changes by format,

• and which placements are actually driving performance.

Shelf strategy should not be based on assumptions. It should be based on field reality.

Final Thought: Visibility Is No Longer Just Merchandising

As stores become more crowded and shoppers become more selective, secondary placements increasingly influence discovery, recall, conversion, and brand switching behavior.

The brands winning in-store today are not necessarily the ones spending the most. They’re the ones understanding:

• how shoppers move

• what captures attention

• where execution breaks down

• how visibility changes behavior

In retail, attention is limited, and visibility decides who gets it.

Want to understand how your secondary placements are performing across regions, formats, and categories? Let’s talk!