I don't know why you have to assume anything, I pretty much explicitly stated that I enjoy destiny. But as for the grind: Destiny is a reward driven game. I also enjoy just playing the game. So therefore I like the fact that I am pushed into performing different tasks to get certain things. I have never had not enough weapons parts, and I have fully upgraded quite a few guns. I do not feel that I need more guns/ armour, but I do like to spend a bit of time using a gun at an easier level activity where I upgrade it and get used to it.