If bethesda had any dignity, they would have declined and said "no, [censored] off microsoft. We don't play favorites. We're going to release the DLCs at the same time for everyone. we care more about our fans than we do about a few extra bucks. Not that you would be able to understand this, you soulless corporation of festering greed."
Why would they do this? They've been in bed with Microsoft since before Oblivion was released.
I think they are more interested in the money. They sure didn't try very hard to give us a really deep game. Instead they ripped out half of the good stuff to fit their dragons and some gimmicks into the game.
I don't know how many times I have been disappointed by a missing feature. Enchanting is shallow, there are a lot of missing spells, cooking and wood cutting serve no purpose, and our three attributes are too low to start and get worse as you level. Was a time when you automatically got the skill perks you earned, now you have to pick one from the several you might qualify for. The skills weren't broken, the fact that everyone in the game got them when you did, was.
I don't really care about DLC's. Every time they patched FO; New Vegas for another DLC they found a way to screw up the game. Now my copy of new vegas is all but unplayable. I can only assume that this fouled up patching system is going to get worse, not better.