I think we also need to consider what photography is worth in the rewards it gives us. I used to be criticized by people I knew because I drove an older car but bought new photo equipment. I saw some of them buy much more car than they needed, just to impress people. I don't care to impress people, and was not about to spend hard-earned cash to "keep up" with someone else.
I think I was more sensible than they were, but what it really comes down to is, do what makes you happy. They would take on debt to have a fancy car or truck, because that made them happy. My idea of happiness is much different: good equipment, plenty of film, and the time to shoot it.
When I was young and poor, I shot Kodachrome, and I had to discipline myself to make every shot count. I did experiment, but always with a clear purpose. Today, I still do try to make every shot count. Film is not prohibitively expensive; it's just whether the reward is great enough to make it worth the cost. To me it is, and I don't mind giving something else up to afford it, if that's what it takes.
As a hobby, film photography is not more expensive compared to others. Try skydiving, or motorcycling, or fishing, or even ceramics. Or the business I was in for years, golf. If the passion is there, people find a way to do it.