Twenty-Four Jams Drew the Crowd. Six Made the Sale.

At an upscale California grocery store, a display of 24 jam flavors attracted 60% of passersby, while a six-flavor display attracted 40%. Yet 30% of consumers who encountered the limited display bought a jar, compared with 3% in the extensive condition, according to Sheena Iyengar and Mark Lepper’s 2000 field experiment. The business decision is not merely how many products to offer; it is whether the buying environment helps a customer finish choosing.

The result became a marketing legend because it separates two outcomes businesses often treat as one. Variety can make an offer look interesting enough to explore while making the final comparison too demanding to complete.

Attention and Commitment Were Different Jobs

A large assortment signals possibility. More flavors increase the chance that a shopper imagines a perfect match, and the display itself becomes visually impressive. In the jam experiment, abundance was the stronger attention device.

A purchase asks for different work. The customer must compare options, decide which differences matter, reject attractive alternatives and accept responsibility for the result. As the choices become similar, the cost of identifying the “best” one can grow faster than the expected benefit of choosing at all. Walking away preserves the possibility that a better choice exists.

That is the hidden handoff in many funnels. Advertising, search results and broad assortments can maximize curiosity at the top; the same abundance can weaken confidence near checkout. A busy page, crowded menu or long plan table may look successful because people engage with it, even while fewer people commit.

The Replication Changed the Lesson

The famous experiment does not prove that six is a universal conversion number. A 2010 Journal of Consumer Research meta-analysis by Benjamin Scheibehenne, Rainer Greifeneder and Peter Todd examined 63 conditions from 50 experiments involving 5,036 people. Its average effect was virtually zero, with substantial variation between studies; the authors also reported failed direct replications of the jam result.

A 2015 review by Alexander Chernev, Ulf Böckenholt and Joseph Goodman sharpened the question. Across 99 observations involving 7,202 participants, choice overload became more likely when the options were complex, the decision was difficult, customers were uncertain about their preferences, or their goal was to minimize effort. The problem was conditional, not automatic.

Customers with strong preferences or category expertise may benefit from a wide range. A professional photographer can navigate dozens of lenses because the relevant attributes are already meaningful. A first-time buyer facing unfamiliar specifications may experience the same range as work. Assortment size matters through the decision it creates.

Curate the Decision, Not the Catalog

A small business can keep its full capability while presenting three clear starting paths based on the customer’s job: solve this quickly, customize the result, or get expert help. Deeper variations can appear after the buyer supplies one useful preference. The first screen does not need to carry the entire inventory.

A midsize company can organize a broad line around outcomes rather than internal product families, make attributes directly comparable and explain who each option is for. The goal is not to hide variety. It is to remove comparison work that the company understands but the customer should not have to reconstruct.

At enterprise scale, the same principle becomes progressive disclosure: a broad catalog remains available, while search, filters, recommendations and regional availability shape a manageable first set. Different customer groups may need different degrees of guidance, so the architecture should be tested by experience level and buying situation rather than imposed globally.

The ethical limit matters. Curation should clarify trade-offs, not conceal fees, suppress suitable alternatives or steer customers toward the option with the best margin. Good choice architecture makes the reasoning easier to see.

Measure the Gap Between Interest and Action

The useful experiment changes presentation before it deletes products. Keep availability and pricing constant, then compare a full initial assortment with a guided entry that groups choices or asks one diagnostic question. Measure not only clicks, samples or time on page, but completed selections, abandonment, returns and confidence after purchase.

This is also where OrionPilot’s connected approach is relevant. When strategy, creative production, channel execution, customer signals and analytics remain linked, a business can see whether an abundance-led message attracted attention but handed customers a confusing decision—and use that evidence in the next marketing cycle instead of optimizing each touchpoint alone.

The jam display’s durable lesson is therefore more precise than “less is more.” More can win the glance. Marketing works when the path from that glance to a confident decision is deliberately designed.