The thing we should try to not forget is the fact that we can learn all skills does not mean we should be able to use all skills, It is a game of descisions, and if all the buffs lasted long enough to be able to cast them all and then forget them, I mean why would we not simply use them all? You can decide, do you need this buff, or do you want to taunt once or twice extra? Imagine, some people manage to kill every single boss in this game solo, and they do it under 5 minutes. If they could simply have those buffs up for 30 minutes at a time, their kill times would probably go even lower! I would like for stances to stop being buffs, and actual stances instead, but apart from that, there are few buffs I see that should last an eternity like many here are suggesting.