I've got mine preordered.
I've bought all 3 collector's editions, and despite what people say, I have actually looked at the art books rather frequently, I've listened to the audio CDs once each. (They're not really listening music, and definitely not driving music.) I also watched the DVDs a couple times. I didn't just buy them for the in game pet. I bought them as my support for Blizzard, since they are the best game writers in the industry. Many people may not like the game play or the content (challenge) of the games, but you have to admit they have awesome story lines, great lore, and well behaved games. (Most of the problems I've seen in WoW were actually spyware and bad hardware, not a problem with the game.) In addition, they make games that are entirely self contained. They don't have all sorts of registry entries and special files all over the OS. They don't make games that thread themselves into the OS so badly that when the game fails, the OS is taken down with it. (I will never buy another Adobe product again after my latest Photoshop copy protection crash leading to an OS reinstall from scratch.) That's the way all programs should be except anti-virus: entirely self contained.