Well, if you're honestly going to bring up 'games aren't about the graphics' when we're talking about a home console (throwing in a comment about text-based games) meant to compete with the Xbox 360, PS3 and Wii U, then yes - you're going to met with snide comments. The GPU's capabilities translate more to being actually able to play the games, and that has little to do with the visual representation.
The Ouya won't be a worthwhile investment at its price. Honestly, it won't. The above two options, especially the latter Wii U gamepad rip off, seem to be a much better choice.
Valve's 'Steam Box' and other equivalents will likely catch the audience the Ouya is trying to get.