I knew this person was bragging the moment I read the thread title. It's clearly obvious he's not even thinking about selling because who doesn't know what is a common game and what is a rare game without doing some research online.
I collect sealed games, and so I can sympathize a little bit and can see both sides of "Games are meant to be played", but part of my hobby, besides playing games, is collecting sealed games and even in some cases, not even playing the sealed games ever in any form (buying their used counterpart). I don't regret it at all. I think of it as a showpiece, so to speak.
Just the way it goes!