Batman's theory was that they actually limit the amount of content there is so that you will still go and purchase other Activision games like Call of Duty, in a sort of "quality fixing" instead of "price fixing" which has been an age old concept. Though I can't be entirely sure about that, it does seem like they are purposefully limiting the amount of replay value for the content so as to at least push players to buy new DLCs that offer up just enough content to entice you to keep playing the game, but not enough to totally satisfy you. Rather quite sick of such business practices. I mean they were apparently already working on The Taken King back BEFORE the launch of Vanilla Destiny. Luke Smith confirmed this himself in a recent interview.