You tards, you had to by the HL1 engine and Source engine to PLAY CS. So you paid for it twice. Nice try though.
Um...I bought HL1 to play HL1...then a FREE mod came out called Counterstrike that wasn't owned by Valve but buy a bunch of guys that made the Mod. Later Valve bought them out and then went on to release CS as a stand alone game.
THEN I bought HL2 to play HL2...it just-so-happened to come with CS:S. I didn't buy either to play CS...they were just free perks to the game I was actually buying.
Nice try though...nah, on second thought...pretty crappy try.