#1 Destiny is NOT an MMO. Never has, never will be. Bungie has gone out of their way to avoid calling this an MMO. It wants to be PAID like an MMO, but calling Destiny an MMO is an insult. #2 Other RPG/Action/Shooter-esque games do not make older content on the disc irrelevant. Mass Effect didn't do it. Fallout didn't do it. GTA didn't do it. Destiny has just as much in common with games from other genres, as it does with traditional PC based MMOs, yet they do not devalue what's already on their disc. MMOs work in perpetuity, the original disc is the base point at which they expand every 2 years. Destiny isn't anything like that, and will have a Destiny 2 disc in the future, similar to Mass Effect having different discs yet continuing their story. So no, this is not normal growth, this is exploitation at it's most disgusting form.