Really didn't want this topic to go to this direction but I just need to reply.
Exclusives don't live long on dying platforms.
Actually, PC is the dying platform (not just in this case).
Not really, pc gaming is absolutely very much alive. MMORPGs (cough, WoW for example) are extremely popular, same with fps games (check out Battlefield Bad Company 2 sales, at least in some point PC had way much more sales than the console ones), RTS and many other genres are also popular on pc.
Consoles in the other hand, dominate the market compared to the pc sales in most cases, one factor is the piracy, which is a way bigger problem on pc games market. This is why some pc developers have stopped making games for pc, they want maximum profit and pc games aren't that secure way to do that anymore.
But saying that pc is the dying platform is just nonsense. PC has very strong playerbase and that will not change, some people just prefer mouse and keyboard over controller. I am one of those guys who like to play FPS games with keyboard and mouse instead of a controller. It just feels more comfortable for me. Good games sell well despite of the piracy, Valve is one good example of how quality does bring sales.
I am not against consoles, not at all, but if I have to choose between a PC version over a console version of a game, usually the PC version wins. Of course, racing games are much more fun with a controller and same goes for fighting games, it depends a lot of the game.
I see that the only problem that could bring down pc gaming's success is the piracy and how the developers stop making games for pc because of it. Developers want cash, and because console versions usually sell much better, they may entirely drop the pc version out. What comes to Alan Wake's case, I just think it was Microsoft's call to get more consoles sold, xbox 360 doesn't really have many powerful exclusive titles like for example PS3 (Heavy Rain, God of War 3 etc.). I would have loved the freedom of having a choice to choose the platform I'd wish to play the game on, but I guess now the guys with big pay rolls have chosen the platform for me. Money makes the world go round