Sort of? I'm a very material person, and my go-to way to cheer myself up is often to purchase something. I didn't have much money that I could spend until I turned 18 and started getting my student loan (which I did not need in its entirety because I was living at home but got anyway because you couldn't separate it into course fees and expenses - it was all or nothing, so I went from having less than £100 to getting £3000+ instalments every six months for three years, with nothing to actually spend it on...yeaaaah) so since then I've always been a bit...excessive, in what I buy for myself. If I actually want it, then fuck it, I buy it. There isn't really a cap on that either.
That said, I have to actually want something to buy it, and I am very good by now of talking myself out of something. Hesitation usually means I'm not going to get it. I'm a horrendous spendthrift sometimes even when I don't have to be. But I am usually thinking of "the next thing" once I've bought something, even if it's just in the back of my mind. I'm satisfied with what I have, but if I can have more...well, why not. It's my money. I work hard for it now, and there's no point in living if you can't enjoy yourself.
Basically, I buy whatever I desire. Usually how much that is depends on how many games are coming out this month, if I suddenly feel like playing something specific, or if I'm feeling especially miserable. It can be both more or less than you might think. Quite often it's less, but there are short bursts where it's more.