There are two big difference between Destiny and WOW... they are a payment method and price. Look. For the next expansion of WOW (Legion), players will pay $50, and an additional $42 for subscription for at least 3 month (I think that will be enough to play). In total WOW Players will pay at least $92 for 3 month of playing time... on the other side, players of Destiny will pay $30 and play forever. See that difference? If you want to have more content like WOW do. Then you will need to pay more. Bungie Do really good DLCs for that small price.