I don't think anyone who loves the game would be. I've got two copies of Dark Souls. >_>
Just pointing out how much of a *** move it is.
The game is about a year old. Is the expansion coming out at full retail game price? If not then you're basically getting a free copy of DD to play with in case the other breaks.
When the Dragon Age expansion was released,you could buy it on its own for 35 euro,or the ultimate collection for 35 euro (game,all dlc + expansion). Did people complain about getting something extra from nothing there?
It also opens it up to new fans for a cheaper price. Maybe that didnt get a chance to buy it originally or were holding off or unsure. A price drop + expansion release might be enough to snag more customers
edit: Perfect example is my friend had no interest in dragon age,and when the expansion came out,he bought the entire thing for 35 euro because it was good value. Even if he never played it (I think he played it and hated it) that is still an extra copy sold in their books