you can buy used games without having to return them you know, not everyone just rents - the whole point is that you
aren't spending 60 bucks on a shorter game experience because since it's used the value lowers greatly
it also stops you from buying a game and then when you're done with it, selling it to someone else
it also also stops you from going to a friends house and playing a game you bring with you or borrowing a game from a friend