
Sounds good to me!
I don't see this as a big deal. Sure, not everyone has great Internet access, but you will still have the solid state memory option. And this won't necesarily lock out the brick and mortar: Maybe the solid state option will be a buy-once option where you take YOUR memory card to the store and it copies the purchased game to your memory then delivers the key to your Live account. With USB 3 and other competing high-speed data transfer options the wait at the store would not be prohibitive. Hell, maybe you can use the same distro method for movies, etc. RedBox as a Xbox distrobution outlet? Sounds doable!