Everything devalues over time, but if Bungie is telling us that Destiny Vanilla+TDB+HoW equates to $20 in their equation once TTK drops, there is a serious issue then with how much we (or I) have paid in $90 for already. Ive already made up my mind, Ill be getting TTK, but I truly feel that the price is on the high side considering what people have already paid for the game.