I can see your dilemma. Elemental burns can be a crucial asset. If I'm lucky enough to ever not (a) get kicked at level 32 PoE (if I join), or (b) not have teammates quit out (if I'm host) when they realize I don't have "the exotic rocket launcher that shall remain nameless", I just might eventually get to the E-light I need to take my B-Line to 365. Of course, before I can worry about that, I need to get the armor cores so I can get to level 34 (currently at 32.5).