I don't collect anything. I've never really understood why people collect things, especially if they're things they don't actively use in any way. Sure I have plenty of video games and some comic books, but they're things I've acquired and used. I've recently tossed a bunch of stuff, because I don't really have much sentimental value in any of it. At best I have a fear of wanting to use it again at some point, so I don't get rid of some stuff.
So, why do you all collect the things you collect? What drives you to add another piece of your collection? Do you actively use the things in your collection, put them on display, put it away somewhere, or some combination?