“It would be great if people had to buy more of the thing,” says guy who makes money selling the thing.
As I understand it, most disc copies of games today aren’t viable in the first place. Either all of the game data is not on the disc and some needs to be downloaded anyway, or the game copy on the disc is in such a shit state that you wouldn’t want to play that specific copy.
Discs don’t really protect us in the sense of ownership. It’s still reliant on the same backend to enable it in most practical senses.