Latest / Marketing Psychology with Fexingo: Behavioral Triggers, Persuasion, and Consumer Behavior / How the Sunk Cost Fallacy Keeps You Stuck
Transcript
- Lucas: You're at the theater, twenty minutes into a movie, and it's terrible. The acting is wooden, the plot makes no sense, and you check your phone — still an hour and a half left. But you stay. Why? Luna: Because you already paid twelve dollars for the ticket. Lucas: Exactly. And that twelve dollars is gone whether you walk out or not. But the thought of 'wasting' it feels worse than wasting the next ninety minutes of your life. That's the sunk cost fallacy. Luna: And it's not just movies. It's gym memberships you never use, software subscriptions you forgot to cancel, projects at work that should have been killed years ago. Lucas: The term comes from economics — a sunk cost is a cost that's already been incurred and can't be recovered. Rational decision-making says: ignore it. But humans are not rational. We're wired to keep investing because stopping feels like admitting failure. Luna: There's a famous example from the 1970s — the Concorde jet. The British and French governments kept pouring money into it even after it was clear it would never be profitable. They'd already spent so much they couldn't bear to walk away. Lucas: Hence the other name for this bias: the Concorde fallacy. And marketers know this. They design systems that create a sense of investment — time, money, effort — so you keep going. Luna: Let's talk about gym memberships. Most gyms make their money on people who don't show up. But they also use the sunk cost to get you to renew. Lucas: Right. You sign a one-year contract. After three months, you've been twice. You're not using it. But when renewal comes, you think, 'Well, I already paid for a year, I should at least get some use out of it.' So you renew, and the cycle continues. Luna: And they'll offer a 'discount' for early renewal — you're saving fifty bucks! But you're saving fifty bucks on something you don't use. Lucas: That's actually a double trap. The discount is a decoy to distract you from the real question: should you be paying anything at all? But the sunk cost of the previous year makes you feel like you've already invested, so you double down. Luna: Subscription services are even more insidious. Think about that cloud storage subscription you signed up for because you needed extra space for a project. The project ended, but you're still paying nine ninety-nine a month. Lucas: Because you've stored files there for two years. If you cancel, what happens to those files? You'd have to migrate them, or lose access. That's a new cost — switching costs. But the sunk cost is the two years of payments you've already made. You tell yourself, 'I've already paid so much, I can't just throw it away.' Luna: So the sunk cost keeps you paying even when you don't need the service anymore. And SaaS companies design for this. They make onboarding a big investment of time — setting up integrations, uploading data, training your team. Once you've done that, you're unlikely to leave. Lucas: It's called 'stickiness,' but it's really just exploiting the sunk cost. The more you invest, the harder it is to walk away. And the smart companies don't just take your money — they make you invest effort. Because effort is harder to write off than cash. Luna: There's a classic study by Hal Arkes and Catherine Blumer. They had people imagine they'd bought a ski trip to Michigan for fifty dollars, then a better trip to Wisconsin for a hundred dollars. They can't transfer or refund either. Which trip should they go on? Lucas: And most people said the Michigan trip — even though it was worse — because they'd already paid for it. They let the sunk cost override their enjoyment. That's the bias in action. Luna: So how do you fight it? Especially when companies are actively exploiting it. Lucas: One technique is to reframe the question. Instead of 'What have I already invested?', ask 'What will I gain from continuing?' If the answer is nothing, walk. The past is gone. The only thing that matters is future benefit. Luna: Another trick: pre-commit. Set a rule ahead of time. Like, 'I will cancel any subscription I haven't used in thirty days.' Then you don't have to make the decision in the moment when the sunk cost feels real. Lucas: And for businesses, there's an ethical dimension. You can use the sunk cost to retain customers — but you're also trapping them. The most sustainable companies build real value, not just inertia. Luna: All right, let's take a quick beat. If these marketing conversations have sparked something you've actually used — maybe you recognized a bias in your own buying, or you shared an episode with a colleague — that's exactly the kind of thing that keeps this show going. Lucas: Yeah, listener support is what keeps this podcast ad-free and independent. So if today's episode was worth a coffee to you, you know where that goes. It's buy me a coffee dot com slash fexingo. Luna: And we really appreciate that. Now, back to the bias — because there's one more industry that weaponizes the sunk cost like no other. Lucas: Airlines. You buy a non-refundable ticket. Then your plans change. The rational move is to eat the cost and book a new flight that works. But instead, you change your entire schedule, take red-eyes, spend extra on hotels — all to avoid 'wasting' that ticket. Luna: And the airline knows it. They price non-refundable lower to hook you, then they make money on the changes and the extra spending you do to salvage the sunk cost. Lucas: Exactly. The ticket is gone. But you treat it as an investment you need to protect. The airline is betting that you'll behave irrationally. Luna: So the next time you're about to stay in a bad movie, or renew a gym membership you don't use, or pay for a non-refundable flight that doesn't fit your life — remember: that money is already spent. The only question is whether the next hour, month, or flight is worth it. Lucas: And if you can train yourself to ask that question, you'll save yourself a lot of wasted time and money. Which is a pretty good return on a twelve-dollar movie ticket.