I did buy it for the sole reason of playing it. I beleive my though process was "Hey I've always wanted to play that" and "I have $10". I didn't even know it was a sought after item.
I don't care if a game stays sealed. I like to play 'em. I do like to have nice copies, but I draw the line at having a "shelf" sealed copy and a "playable" open copy.
I also take my action figures out of their original packaging so I can play with them.