I'll just buy whatever I want.. I don't mean to sound like a prick, and I totally understand that money isn't something everyone has, but I'm as poor as the next man (typical poverty line $/hr) but I can always find a few bucks here and there and throwing 50-60$ dollars a year at a game that gives me hundreds if not thousands of hours of play time is still the cheapest hobby I've ever found.
I used to mess around with RC trucks/cars, the high-end stuff. You want an expensive fucking hobby? Jesus. I had an electric truck (nitro is shit, electrics have surpassed it in every way) that had over 2000$ into the build. Any time those RC trucks and shit see the light of day you're going to cost yourself 20-40$. That's what got me out of the hobby. Fun fact, I have a weird YouTube video I made reviewing a little mini-rc truck called a Teton, that got like 40k views which isn't bad. One internet point to any poor bastard that finds it and sits through it. It was made as a general experiment.