Every January, gyms across the country fill with new faces. The treadmills hum, the weight racks are packed, and the energy feels unstoppable. Each person swipes their shiny new membership card with the same belief: this time, I’ll stick with it. Gyms know this story well. In fact, their entire business model depends on it.
On paper, a gym sounds simple—you pay a flat monthly fee, and in return you get unlimited access to equipment and classes. But here’s the economic twist: if every single member actually used the gym every day, the business would collapse. There aren’t enough machines, weights, or space to handle the true demand. The only reason gyms can afford to charge $30 a month is because they know most members won’t show up often.
This is where the breakage model comes in. Breakage is when companies profit because customers don’t fully use what they’ve already paid for. Airlines rely on unused frequent flyer miles, retailers pocket billions from unspent gift cards, and gyms thrive because people’s motivation fades after the first few weeks.
The math makes it even clearer. A $30 monthly membership adds up to $360 a year. If you only go twice a month, each workout costs you $15—more than a boutique fitness class. For the gym, though, it’s perfect: your money keeps flowing in automatically, whether you visit or not.
So why do people keep signing up? Behavioral economics has the answer. When we picture ourselves in the future, we imagine the best version—disciplined, motivated, consistent. Signing up for a gym is less about exercise today and more about buying into a vision of who we want to be tomorrow. Businesses know this, and they design around our optimism.
The lesson? Subscriptions are built on hope. To make them worth it, you either have to show up consistently or accept that you’re paying more for an idea than for the actual service.