Keeping games sealed really REALLY irates me, unless it's a game that you happen to have a dupe of (in that case why not trade or sell?), is a game that is so horrible it should never EVER be opened let alone played, or you simply haven't got around to playing it yet but plan to eventually open...
Like it has been mentioned, there are WAAAYY better hobbies out there for collecting stuff for the sole purpose of looking at it, and much better ways to invest your money. By keeping a game sealed you are depriving somebody from playing that game like it was meant to be played, on the original hardware. I don't know about you, but I believe many people who program games, (at least in years past) want their games to be played and enjoyed, not stuck in their original packaging serving only to inflate the ego of some snob. I wouldn't mind this so much if it were something like baseball cards, whose only purpose is to look and marvel at them, but games were meant to be played damnit!!! I swear one of these days I'm gonna go on a sealed game opening rampage, opening every damned sealed collectors' games! It will be vigilante justice!
Oh and on a side note rainbow, you can be diagnosed with OCD, even if you only exhibit the compulsive type behavior, or are even just mildly obsessive. I know because I am diagnosed with OCD, but mainly for compulsions, and a little obsessive behavior. It is in no way interfering of my life, but i do understand that in severe cases it can be...