Gamefly is concentrating on the exact opposite, more traditional part of the game market. Focusing on the Wii, PS3, PSP, XBOX, Nintendo Game Cube and Nintendo DS they sell everything from Super Mario Brothers to Grand Theft Auto. With over 7,000 games, you can rent one game at a time for $15.99 a month and 2 game at a time for $22.99 a month. The site sorts by popularity or release date and provides information on what type of equipment you need to play. So for Wii, it will let you know if you need the Steering Wheel for the game.
So if your kid seems to go off and on games like mine and you get frustrated at the $30-$50 games that are just sitting there next to your TV unused, SmartyRents and GameFly provide a great alternative using the NetFlix model.