Just beware, EA is the true source of the blight. This rant will sum it up quite well:
Penny Arcade: A Truly Fascinating Phenomenon, along with a comic related to it.
First of all there's like a dozen or more small single item/ability/whatever DLCs around, which seem to depend on where, how and what you buy. Okey, that's not too bad, I mean who cares about a few silly items that you cannot get by any other means than by being in the right place and buying the right version.
Then there are two totally different collector's editions around: hard and digital copy. The hard copy costs whole lot of bucks, containing an aluminium box, cloth map and something like that, BUT you don't get Warden's Keep nor Stone Prisoner addons. HOWEVER if you buy the digital collector's edition, then you'll get both of the addons. They say that's because you don't get the other goodies - alumium and cloth are difficult to download. Regardless you'll have to pay alot more for the hard copy and yet you don't get the addons.
Let's forget about the collector's edition. Who needs one, right? You'll finally get the game, install it and start playing. After a while of playing you'll go to a camp and there you'll find a character who's offering you a quest. It turns out that you need to get premium content for the quest that's included in the vanilla version. The premium content costs $7 for the Warden's Keep and $15 for the Stone Keep - if you didn't get those with the digital deluxe edition.
Let's just say I'm glad I didn't find the collector's edition available at any store in the EU. I might've preordered it and found out that I'm left out of important two addons. After all I've been under an impression that a collector's edition contains all of the stuff available on the date of release, thereby avoiding all the hassle with additional material that does not ship with the vanilla version. I guess I cannot anymore rely on that notion when purchasing games.
I'm glad I didn't preorder. Simply having the EA publish the game made me very cautious and like I was afraid, my fears were proven correct. I suppose it's needless to say that I'm not going to support this kind of marketing model.
Such a pity, before the release I was anxious enough to mod a wallpaper.