The economies really have been ever changing. It's like a staple of the game at this point. Legendary Marks and Crucible Marks, Commendations, Exotic Shards, Etheric Light, Tokens, Enhancement Cores, wide varieties of planetary materials, the ever present glimmer. Vanguard vendors all take different currencies, then the same currency, now different currencies again. This package will cost you 40 ______, now it's 100______. Iron Banner weapons used to cost glimmer once upon a time. Bounties were free, now they cost things. Used to cost glimmer to apply shaders, now that's free but it still costs glimmer to apply mods. So so so so so many examples of an ever changing economy. You could say that it's an "evolving" economy, but the economy also regresses. That case in point, of course, is Infusion. Went from a cheap and easy way to keep you favorite gear to being so expensive that it's burdensome. The good thing about this game is that the economy has a history of changing, so eventually we'll have a place to spend Baryon Boughs and eventually Infusion costs will get under control again. If not, well... Borderlands 3 is coming fast and Division 2 is supposed to be excellent.