Sometimes. I call myself a 'collector' but I suppose in the truest sense of the word, I'm not because I mostly buy to play. I would make a few exceptions though. For example, if I ever were to acquire one of those limited-edition golden V3s in-package (only 2500 were made), I'd keep it in package. I'd definitely feel bad about opening that up. I have a thing for boxes though, even after opening them up, and so I will go out of my way to preserve packaging (yes, even the evil modern American ones that will cut you even if you're not careful) so that I can store the Tamagotchi if I'm not playing with it.