How do people buy SO MUCH STUFF?

I just moved out and now i live at home for a few months before moving abroad. In the past few weeks, i have sold stuff, thrown out stuff and donated stuff... somehow i still have more stuff than id like to have. In the past 2 years of living alone, i accumulated so much stuff that i dont need! Im glad i dont have to move anytime soon, because wow... buying so many things with no point, or buying things that i dont really need or even like that much... why? I thought i was a minimalist compared to everyone else, but now i have realized that how little stuff i have compared to most people does not mean that i dont have too much stuff. I was happy with the stuff i had.... how do people buy so much stuff that they use once or twice and then just hav it sitting around...