Originally Posted by DArtagnan 
I think the developers are bound by an obligation to the suits in these cases. DLC is probably "standard practice" to squeeze one more buck out of the consumer.
I remember reading something from CD Projekt prior to the release of TW2 how they really didn't want to do the whole store specific pre-order DLC bonus thing but the retailers were demanding it. The stores expect it now. They apparently want some reason to stand out for people to buy it from them vs store X etc.