tIANci - I hear you. I've been in the hobby since April of last year after a long layoff from a short stint in the early nineties. I'm single too and what I do with my fun $$ is up to me. I'd much rather spend it on my hobbies/sports rather than expensive restaurants/vacations/clothes etc. NTTAWT, but I just like my toys.
You got a lot of 40 sized planes like me... Once we get into the bigger stuff beware. I'm getting into the 60-1.20 sized stuff now and I can only shudder to think of going to gas someday. Then... turbines.
And I may have you beat.

I'm not sure if that's a good thing or a bad thing, but it's definitely an expensive thing.