Don't copy that floppy.

Pirating a game or buying second hand both do not give any profit to the gaming company, they are the same in that you are not buying the game and still playing it.

The Steam system binds the games you buy to your account, you can't share them with your friends.

And therefore why I said that the libraries should be closed since you aren't buying the book but still you get to read it and the company that made said book doesn't gain anything thus cutting their profit.

And you said "play games at your friend's house" and thats not the same as sharing it with your friend so he can install it on his computer too, so why I made the joke about libraries.