Pretty smart move from Microsoft. $60/70 per game profit when they sell it digitally. They'll probably make as much from selling two copies in retail with added cost of production/shipping/retailer fees etc. Plus they'll increase their sold number for a bigger installed base for the inevitable DLC, which should help sales of that. Microsoft is doing some smart business here.
I don't get all the "OMG RIP XBOX" comments; literally nothing changes for Xbox owners, in fact Microsoft will only make more money from selling their games on two platforms instead of one and that will increase their budget for more/different games. If you want to play your games on PC, fine, Microsoft will make money from you. If you want to play the games on Xbox One, fine, Microsoft will make the same money from you on Xbox. It's not that hard to understand. Yes, Xbox has less console exclusives now but Microsoft doesn't care, they'll make money from the games sold on PC or Xbox no matter what.