The good side of subscription based life is that you can also be the person who can do subscription based product and sell. Many people miss that part, and there are so many things in life that can easily be turned into subscription model.

Also, one benefit is that, while many people do cancel their subscription when they do not use it anymore, plenty more keep the subscription even when they do not use it, specially if the price is low. That is why you would have a base number even when you do nothing.

If you are so bothered by the logic, just try to make one yourself, and try to get as many people as you possibly could.

Even at just 10 dollars per subscription, 100 people would make it worthwhile, so it is not that difficult.