The Ouya is a console with a controller. It won't just be casual games and it won't suffer from terrible control schemes. I have my doubts it will do much to Sony, but I'm glad to see the additional options coming.
Options are always great, and a console like Ouya will serve a lot of people better than a more expensive console.
But take a game like space invaders. When it came out, it was new and shiny and amazing. When I played it in the late 80's (My parents were too cheap for a Nintendo, I didn't play one of those until the SNES / Genesis were already out.) It was so awesome that I couldn't imagine any game ever being better. Now, decades later, it's still a good game, but it's so simplistic in comparison to current games, that I can't see myself playing it for hours on end.
Now take a game like Grand Theft Auto 3, represents one of the more complex / graphically intensive games ported to Android / IOS. When it was first released, it too was an amazing game. I spent countless hours driving around, shooting things, and completing the missions. While it was amazing for it's time, in comparison to this generation's games, the graphics are dated and the game play seems to lack depth. Once again, I can't see myself enjoying it now for more than a few minutes.
There are some games that are truly timeless, like Contra, Mario, Chess, Go, Quake 3 Arena, Mario Kart, etc.., but most console and PC games don't age well.
I actually couldn't really get into Metroid. I'm a 3rd generation military brat that ended up joining the Army so I think the theme of Contra appealed more to me. In the grand scheme of things, I agree Metroid was more influential, but I just didn't like it.
I can't believe I forgot to mention Tetris though.
Ouya is not even out yet, and just because it found 100 000 clients on Kickstarter does not mean it will be much bigger once it reaches the market. And it's probably "too cheap" in terms of hardware to motivate anyone serious with gaming to buy it.
mrbill, not sure if you know but you are [dead]. Anyway, for me being serious about gaming is not just about playing good games of all ages, but also keep trying NEW games. I would not be satisfied playing with the Atari 2600 forever.