The gaming business is attempting to reinvent and get consumers off of older "habits".
They want the Steam / AppStore type delivery system. You can't share an iOS / Android game. You can't share a PC game from Steam. Why should you share any other kind of game? Why is that acceptable for some markets, not others.
I don't agree with the methodology. I hate it. When I pay $50 for a game, I want something out of it ... not just the rights to download it onto a propitiatory format hard drive.