"If you want to buy a disc, pay $59 for a game due to all non-digital crap the disc has to go through. And then do what you want with it. HOWEVER, if you download the game, it's like $29 (50% OFF!!!11), but then it's just yours, and yours alone, you can't sell or lend it - and we'd have to check every once in a while it's really you who's playing."
I wouldn't mind that at all since they'd be giving me a choice, and I'd gladly pay less, despite the 'lockdown'.
Dear Microsoft, all you have to do is ask your target audience what they think - you might be suprised.