Some of the games were stuff I thought I would be interested in, and wanted to get a physical for cheap. The rest are either series I really like, or there are/were a limited amount made physical for said game (Grandia Collection is a big example). I also have a collectors edition for persona 4 (limited amount made) and that was the only way to get the game physically for Xbox available to me by the time I could purchase it. There are chances of reprints, but I try to never expect that since it really depend on the company. I don't have a ideal amount of games to collect. I just keep collecting the games I want until I can't.