Unfortunately, your statement is so incorrect I fail to see how people agree with you. $40 for The Taken King (a Major Expansion) is nothing new in the gaming market. Plenty of MMOs & Triple A titles have been charging $40 for expansions for going on ten years now. Plus, Destiny's regular expansions will still only cost $20. Bungie couldn't afford to make The Taken King free, unlike other online games where they charge subscription fees, Destiny does not. Because of this they rely on literally what expansions and copies of the games players buy to keep their servers alive. If Bungie doesn't get enough revenue to equal the cost of work to produce the content, then Activision would cut them off - and Destiny wouldn't have servers anymore, and no one could ever play it again.

First to dlc's were cut content. They didn't deserve the money we gave them.

Two* Also, this cannot be proven and has been debunked every single time it's been tried. It was not cut content, and apparently people like you fail to realize the truth about that, considering it's been debunked by several sources. You provide such an articulated argument.