>For example, take a fridge. If I buy a fridge, the company I buy it from has an incentive to make it break in N years, so they can sell me a new one, i.e. "planned obsolescence". However, if I subscribe to a service to keep my food and beverages at a certain temperature, then the company has the incentive to make the fridge last as long as possible.

You just described a grocery store...

They keep food and beverages at certain temperatures. When you are ready to consume that food or beverage, you can pick it up (or have it delivered). And best of all, you pay no subscription fee :) But in reality, that's not practical. Most families eat 3 meals a day, and consume multiple glasses of some drink a day. To make a trip to the grocery store (or fridge depot subscription place) every time you want to eat or have a cold drink is not practical (and increases environmental pollutants). So maybe you want to go once a day, you'll still need some device at home to keep your groceries and drinks cold until you want to consume, some device like a fridge :p

If you found a solution, that'd be great. But you'd probably just be a food delivery startup with some fancy marketing lingo. And we have plenty of those already.