I haven't been following the Xbox stuff to closely, but what were the huge benefits that they reversed out of curiosity?
Couple of the top of my head:
Family sharing which would have allowed you to share games with up to 10 people. Much like what steam announced recently
Discless play even with disc based games. The up side to this would be that you could switch instantly between games. The down side is that it would tie that disc to your console so no more trade ins




/irony