Here’s a question with no real answer: what should your product cost? Not what will people pay — what is it worth, in dollars, objectively? You can’t say, and neither can your users. There is no built-in gauge in the human head that converts “a tool that saves me two hours a week” into “$14/month.” The number feels like it should exist, but it doesn’t. And a brain confronted with a quantity it can’t estimate does something specific and well-documented: it grabs the nearest available number and adjusts from there.
Tversky and Kahneman showed this with almost cruel simplicity. They spun a wheel rigged to land on either 10 or 65, then asked people what percentage of African countries were in the UN. The wheel had nothing to do with anything — everyone watched it being spun. Yet people who saw 65 gave far higher estimates than people who saw 10. A completely arbitrary number, visibly random, still dragged every subsequent judgment toward itself. They called it anchoring: we don’t estimate from scratch, we start from whatever anchor is handy and adjust — and the adjustment almost always falls short, leaving us stranded near the anchor.
Now put that on a pricing page, where the user has genuinely no idea what the thing is worth. The first price they see isn’t just one option among several. It’s the wheel. It sets the scale that every other number gets measured against.
This is why the highest tier on a pricing page is doing quiet work even when almost nobody buys it. Show a $9 plan next to a $29 plan and the $29 looks like a splurge. Put a $99 plan above them both and the $29 suddenly reads as the sensible middle — same $29, completely different feeling — because the anchor moved the ruler. Two related effects pile on. Extremeness aversion (the compromise effect): people shy away from the cheapest and priciest options and gravitate to the middle, so a three-tier layout gently herds buyers toward whichever plan you make the middle one. And the decoy effect: a carefully-placed option that nobody’s meant to choose can make a neighboring option look obviously superior, just by existing.
So the practical moves fall out of the mechanism:
Lead with your real value, not your cheapest number. If the first price a visitor sees is your $5 starter, you’ve just told their brain the whole category lives around $5, and your $40 plan now feels outrageous against an anchor you set. Show the fuller offering first and the scale opens up.
Design the middle on purpose. The compromise effect means most people will reach for the center tier. That’s a decision you get to make, not one to leave to accident — build the plan you actually want most people on, and position it as the middle.
Anchor against the alternative, not just your own tiers. The strongest anchor is often the thing the user would otherwise pay: the hours of their time, the pricier incumbent, the cost of the problem staying unsolved. “Less than one hour of a contractor’s rate” sets a reference point that makes your number feel small before you’ve even shown it.
A caution, because the neuroscience brand comes with an obligation: anchoring is a real, robust effect, but it is not a magic wand, and users are not fools. A ridiculous anchor doesn’t calibrate — it just reads as a con and burns trust, which for a young product is the one thing you can’t afford. The honest use of anchoring isn’t tricking people into overpaying. It’s giving a genuinely uncertain buyer a fair frame of reference for a value they truly can’t compute on their own — because in the absence of any anchor from you, they’ll grab one from somewhere, and it probably won’t flatter what you built.
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Going weekly in August (it's in beta now). One genuinely interesting read on building, the brain, and the science most people missed.