Judging by the fact there is going to be such a MASSIVE rush to get this game, with all the copies being whacked on steam in a period of hours, I would imagine it's in order to lower the strain on Steam's servers. With 2.5 million copies pre-ordered in the US alone, I think Valve is trying to stop their headquarters going up in a server related explosion...
...At least, thats the "logical" way of looking at it...But then again, the reaction to this game has forced some gamers to abbandon this silly notion of "logic"...
...At least, thats the "logical" way of looking at it...But then again, the reaction to this game has forced some gamers to abbandon this silly notion of "logic"...