I always open them, because I want to display them and play the game. I think I would buy two of a CE if I have the money, one to display and one to keep it sealed.
Sometimes I buy some games twice to play them, but on diffrent systems. For example I bought Black Ops for PC and XBox 360(Prestige Edition), because some friends play it on PC and some on XBox 360. I also had to buy the XBox version, because there wasn´t a Prestige for PC!
So I think I can understand both sides!
