I don't own any of the retail copies cause I already sold or traded them![]()
I used to do that. Finish a game, and then trade it in for the next one. Rinse and repeat, Does wonders for your backlog and saves a lot of money.
But thne I've given a few games back that I found my self wanting to play again. Couldn't bring myself to buy them again and I regretted. selling it in the first place. Tales of Vesperia

Now I only trade about half my games and keep the rest. Especially rare games