I'm definitely the collecting type. My main goal is to have one of each non-common item, excluding the consumable orbs and crates, although I will probably buy those if I see someone selling them. Until I reach that goal any extras I have of any items will be traded away for items I don't have with zero hesitation. Although, I also enjoy giving stuff away, so I may give extras away to people through games or contests.
I feel like I'm like that with games and such too. I've always loved trying to collect everything in games like Super Mario