Xbox backwards compatibility only works for games that the publishers clear with microsoft. We wont see this feature really working for at least a year imo. Right now you can only use backwards compatibility with certain games, all of which are pretty lame, the coolest one is probably mass effect. But i strongly suggest upgrading to Xbox One because you are familiar with them have an account you have worked on (gamerscore) and imo they have better games which is really what it comes down to. If the games as fun the graphics shouldnt matter, why do you think i still play supersmash brothers