World of Warcraft: Mists of Pandaria Collector's Edition (Web Only)
This game is pretty fun
I know this is probably e relevant, but EB games in my area had a poster on there window advertising if you pre ordered a copy of mists you would get an exclusive poster. I pre ordered months before release and I did not receive such item. Now on to the game its self its really fun way better then cataclysm.
Which should you buy?
To clarify the previous entry, if you're only looking for in-game bonuses (such as the mount or companion), go with either of the 2 digital copies of the game (regular or delux) which can be purchased straight from Battle.net. It you're looking for out-of-game bonuses (art book, soundtrack, etc), go for this collectors edition (it also comes with the in-game bonuses). Enjoy!
Digital Deluxe Edition.
If you are looking for the in game items along buy from blizzard online.For real life goodies get CE