Heyyo,
Word. What PMB said. Valve makes their living off the sales of their games, same goes for the music industry n' movies n' what-not. Ripping off stuff is lame already.. but admiting it to the general public?... well, I won't finish this one, you think aboot it eh?
So yeah, if the games worth the cash it deserves the monetary respect.
Oh, dude, you should go on the steam forum, I bet they'll praise you for downloading and illegally using steam and other games. I'll help you out dude:
http://forums.steampowered.com/forums/ 