It's not a matter of whether or not people think that playing games on devices that don't come from "The Big Three" is a good thing or not - it's a matter of whether or not an Android gaming device makes a lot of sense or not.
It hasn't even been released yet and it already has rivals in its own market, that says a lot. You have the Game Stick, you have the USB+HDMI Android sticks, you have the OUYA and what you also have is a fragmentation of the market. We've been through this before - during the great video game industry crash. Too many devices spoil the broth, and although "The Big Three" cause stagnation in the market, it's this stagnation that keeps it together.
I think the OUYA was an alright idea in the beginning although I always acknowledged that it won't become mainstream, that it will quickly become obsolete and that it probably should've been a software platform rather than a hardware device since day 1 - it's just something fancy to own for collectors and enthusiasts... but now that yearly hardware upgrades are looming over the horizon, I can understand why people are getting restless.
Personally I'll probably get one, just for the sake of owning it and putting it on my shelf. The problem I see with it is that it plays all the games that... I can play on the bus with an Android handset... and if I can do that already, and even connect it to a TV, what's the point in me getting another device that does the exact same thing? And I need a phone - that much is obvious, so the price argument doesn't fly very high here.
//Srs in EoF