I don't mind them so long as they don't provide unique benefits. Emotes, or things that offer instant exp to gain exp lvls or max a sub class or unlock all weapon nodes don't really bother me. Things that should be put in are pretty much anything with a statistical value, sparrows, weapons, and armor, or drop chance boosters. If the current economy is left as is, I would mid the sale of mats or glimmer. Basically things that just save time but don't reduce difficulty.