Too all those defending this game because it's an entirely new game or whatever ****ing excuse you wana make. If it were all new then why are they thinking about including the original content (not game) with the sequel?
On a similar note, Chet noted that they were discussing including the original four Left 4 Dead campaigns with Left 4 Dead 2. The thinking is that this would make things easier for consumers. After all, if you and your buddies are playing Left 4 Dead 2 and you all want to play a campaign from the original game, it's an incredibly annoying and disruptive hassle to have everyone quit Left 4 Dead 2 and start Left 4 Dead if you're on a PC, or swap out the Left 4 Dead 2 disc for the Left 4 Dead disc if you're on an Xbox 360. User feedback would probably help sway Valve, so make sure to let the company know what you think. And despite the fact that Left 4 Dead 2 is a reality, Chet said that the company isn't abandoning the first game and that it has plans to support it in the future with new updates, like four-versus-four matchmaking.
They are just rereleasing the ****ing game as a sequel and adding the DLC they promised the original owners as the content for the sequel. Current owners better get a discount on the PC, its a ****ing joke.