Is there a digitial game renting service similar to netflix?

I'm really making my room sick as fuck lately. ended up getting an entertainment system, hd tv and surround sound so I want to play a lot more games now. But I don't want to waste money buying them because I get bored easily.

There's a non-digital way through redbox...

Ok then........... pichubro

There is a new console coming out called the ouya that will have every game have a free part, weather it be a demo or the full game. And there is a subscription based console where all of the games are free to play called OnLive.