If you like PC games, you should know about humble bundle. Basically, once a month or so, they gather up a “bundle” of PC games and let you buy them for whatever you want. Whatever you pay gets distributed between the game developer, a charity, and humblebundle. You decide how much of your payment goes where. If you pay more than the average, you get all the games, plus a bonus game, PLUS any games they add to the bundle over the next week or so, and they always add more games.
This batch of games is pretty decent. Normally they are just low budget indie games, but this one is all games from THQ, including Saints Row The Third. I paid $6, just above the average. You get a key that activates through Steam. Pretty good way to build up your game library legally without having to spend $60 on a single game