Me personally, it just depends on what it is. Like the Call of Duty Modern Wafare 2 and Black Ops prestige editions I opened because I wanted to display the night vision goggles and rc car. But I recently decided to collect all the Sega Dreamcast games. I currently own 2 Dreamcasts (both white). One I play of course and 1 i display in my timeline. I'm still looking for that mint and new sega with box so I can display with the game collection. I will be buying the games sealed and displaying. Some I will by doubles to play such as Sonic, Marvel vs. Capcom, Hydro Thunder, Soul Calibur, and Power Stone. I truly didn't care about being sealed or not till I decided to get my Dreamcast collection
