Mate, I'm 31 and am only just about getting to the stage where I can enjoy spending a bit on mods. All of the things I have done have been fairly cheap and spread over the last two years! One day you will be in the same position... I'm going to be a daddy for the first time in April and most of my spending will stop. Might be able to sneak some past the wife....
God I'm about 10 years younger. As much as I love uni, I can't wait to get out there and actually earning some proper money (in a few years I bet I'll regret saying that!). When I was at 6th Form I seemed to have so much spare cash and did so much to my little mk3 Ibiza, but since starting uni I've not once been out of my overdraft and into the positive in 3 years!!! And that's even with working all summer too!
It's a tough life being a poor student when I'm so passionate about my car and just want to do so much to do it *sigh* ah well, that's what dreaming's for I suppose