Heh, what a dainty lil' tea cup!
I don't really collect anything these days... but I'll admit to what I used to collect:
Pokemon cards - I was 14! I wanted the shiny ones! I did
get Charizard! They're still in some binder somewhere around here.
Manga - I stopped collecting these a few years ago, when I realised I was no longer reading what I was buying. I own a few hundred though...
Ceramic pigs - I don't know why... but I collected these when I was about 10. I've got about 20 of them.
Beanie Babies - It was a craze! I don't have nearly as many as some of my friends.
Pogs - Well, this is going waaaaay back. What a crazy fad it was.
Polly Pocket - Yup, I had about 15 of these when I was little. I think the fanchise today has become something almost totally different from the commercials I've seen of it recently.
Yeah that about sums it up. When all is said and done... I have no idea why money was spent on most of those things.
I suppose anything I "collect" now is digital. I'll save images or backgrounds or stories I've read from online.