I dedicate like...80% of my entertainment budget to gaming...so I can justify spending the money on a console that I want, in addition to upgrades for my computer every now and then to keep it current.
But then I don't have much 'stuff'. I don't spend money on typically girly things (clothes/shoes/handbags), I don't collect anything, and I'm a homebody. I won't even go to a movie in the theater unless it's has earthshaking potential. I spent the entire weekend searching for the perfect bed-in-a-bag set online because we need a new comforter and I couldn't part with more than $50 because, in my mind, that's all something like that is really worth to me.
So I'm super cheap in all things....except gaming. And beer. I spend way too much money on beer.