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Imagine this…

You pull into the gas station after work, planning to get a half tank of gas and a quick bite to eat before starting the 30-minute commute home.
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But before you swipe your card at the gas pump, you spot a sign: “Spend $45 on fuel today and get a free $10 gift card.”
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​Next thing you know, you’re hopping back in the car to glance at the gauge. And you immediately start doing mental math.

You didn’t intend to top your tank off, and you’d only need to spend ~$30 to get through the rest of the work week.
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​“I’ll always need gas,” you think as you step out of your car, grab the nozzle, put it into your tank, and watch the gallons dispensed grow.
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When the pump clicks off at $51.07, you snatch your receipt as evidence and walk inside the convenience store.
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But instead of your wallet feeling lighter, you feel like you won.
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​What compelled you to spend nearly $20 more than you intended to?
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​In today’s edition of Why We Buy 🧠 we’ll explore Incentivization—why we are motivated by rewards.
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​Let’s get into it.
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🧠 The Psychology of Incentivization

Incentivization is rooted in operant conditioning.
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Aka behaviors followed by rewards are more likely to be repeated, while those followed by punishments are less likely​.
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Psychologist B.F. Skinner famously put hungry rats in small boxes with a lever. If they pressed it, a food pellet dropped into the tray.
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At first, the rats hit the lever by accident. But once they realized the lever provided food, they began pressing it on purpose to get the reward.

The behavior had been reinforced: press lever → get reward → repeat.

But when Skinner later randomized the reward—aka only delivering the food sometimes—the rats pressed the lever even more.
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Why?
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Because when rewards are unpredictable, dopamine spikes not just at the reward but at the anticipation, turning surprise into something addictive.

Humans aren’t so different.
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That’s why smart marketers know adding a reward to the buyer’s journey is more than a delightful touch.
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It’s a science-backed way to reinforce the buying behavior and keep them coming back for more.

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🤑 How To Apply This

Alright, so how can you apply this right now to sell more?​
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eCommerce​
Offer samples to spark repeat sales

Sephora doesn’t just toss in free samples for fun. It’s a deliberate strategy.
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By giving customers a bite-sized reward—like a sampling of a popular foundation or lipstick—they’re rewarding the buyer for shopping with them.

This lets customers explore options they may not have otherwise, increasing the likelihood they’ll come back for the full-size version.
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(Plus, when people receive something valuable, they ​naturally feel a pull to give something back​, like their money through placing another order. Win-win.)

SaaS​
Use surprise celebrations to reinforce task completion

Every so often, when you check off a task in Asana, a rainbow-tailed unicorn flies across your screen.

It doesn’t happen every time, and that’s exactly the point.

That unpredictable moment of delight makes a typically mundane process feel magical—and weirdly addictive.
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The result? Completing and checking off tasks becomes rewarding as you hope the next click unleashes the unicorn.

Launches​
Reveal surprise bonuses to boost sales mid-launch

Most launches have a natural lull between cart open and close.

One way to resuscitate attention *and* boost sales during the tumbleweed-blowing-down-the-street period?

Reveal special bonuses you specifically saved for this occasion—like Ashlyn Carter did.

These mid-launch bonuses act like surprise rewards, hitting the brain’s dopamine button and nudging more fence-sitters to finally hit “buy.”

💥 The Short of It

Rewards aren’t just nice perks. They’re behavior-shaping tools.
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Whether it’s a freebie, flying unicorn, or bonus, the right incentive at the right time can tip buyers from “maybe” to “yes”—and keep them coming back for more.
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​​Until next time, happy selling!