Destiny was doing fine until clearly expansion/content gear was put into the mtx store. Then the whole content vaulting happened and everything went down hill.

The content vault was done to reduce storage space requirements by removing the main story and multiple planets. The story put in to replace the base story made little sense and was just badly designed. In effect this meant the base game (previously paid content) and paid expansion content was removed. No refunds or anything as the policy you sign to play says they can remove content at will.