On top of that what Im getting from you is that I might be only able to play the game for a certain period of time?
well the others have already touched up on the rest pretty well, so i suppose i'll just touch up on this last point here:
basically because of DRM the game must be connected to the internet to be activated for installation, even though you may or may not be able to play the game online afterwards. Some games require that you be connected to the servers at all times to play even singleplayer(a prime example would be the new sim city, or Diablo3) and basically in the end what will essentially happen is once the games become too old, when the console is at or past the end of its lifespan by a bit, the servers will all be shut down and you will no longer be able to play all the games you paid for - they then pretty much become nothing more than useless pieces of plastic. for games that dont require an internet connection outside of the initial install, the issue becomes, what if 10 or 15 years down the road your console gives out, so you buy a new one but the authentication servers are down? then you cant ever re-install your game ever again, which means you just bought another xbox one(probably used and well past its lifespan) for no reason. now you're stuck with a perfectly good machine thats useless, and perfectly good games that are useless, because of DRM.
so basically with an xbox one, your games are guaranteed for the life of the console(between 5-8 years i would guess) and then after that, when they move on to the next console, should they choose not to have backwards compatibility and support your old games, your old games become useless.
on top of that the new xbox only comes with a 500GB HDD, so you can probably pretty much be guaranteed that you will need online authentication, storage or the like just to cope with the massive amounts of file sizes you will be installing onto it, just because this is how microsoft planned it all out.
