Source: I run a SaaS business for gyms and have spent 1000+ hours talking to gym owners about their priorities...

You do cost the gym money every time you go. But only after a certain point (anything more than light use) and if you go at peak times.

Basically, the space you take up at peak time is another membership they can't sell because of potential overcrowding.

> Basically, the space you take up at peak time is another membership they can't sell because of potential overcrowding.

Is that really a thing? I've _never- found a gym that has said "no sorry, we can't sell you a membership because we're full"

I've canceled a gym membership because it was too crowded at the times I wanted to go.

I’ve definitely tried out a gym and not joined because it was too crowded when I wanted to go

Isn't the same true of movies?

(On the other hand, I'm pretty sure more people skip going to the gym than skip going to a movie!)

It's true of movie theaters. It's not true of people buying tickets at retail (which is what MoviePass is doing).