Because Destiny is a very short pleasure. After 32 missions, which are almost all built on exactly the same pattern (Go to point A, Keep your mind come during waves of enemies, go to point B, the end) there is only the strikes, which operate on the same principle as the missions except that there is still a boss fight awaits.
The boss battles are the strikes, however, designed very unimaginative. Bosses are often known opponents of the missions, with 500 times as many life points and a scaling of 3. They are large, holding a lot of ... end of story.
à propos history, this is told scarce and very confused. Which is a shame because the setting could be really exciting. Really annoying it is that it seems a much fuller story was before the game has been finalized. Cutscenes that it once was, lacking in the game. Characters that should make a contribution to the story are now only extras.
Considering now that large parts of the first DLC already exist on the disk of the main game, then you know why Bungie from Activision so has let prescribe: It's all about the money the player. Because they have too much of it and Activision has too little of.
The main game for 79 euros, 20 euros per DLC again and already we have a OpenWorld Shooter for nearly 120, - Euro, which is so repetitive that it starts after a few missions to be predictable and boring.
For me personally, Destiny is the biggest disappointment that there has been on the PS4. Not because Destiny had a bad game, not because there is no story, nor because here the greed of the Publishers is unbearable. For me it is a disappointment because you out of the game would have so much to do, because if you only had wanted!