Ok, for me these were the reasons so far (before I joined the latest AAW drop):
1) Sound signature:
I am still running through IEMs like a madman. JVC HA-FX850, Aurisonics Harmnoy, 2.5, 1Plus, Noble K10U, UE900S, LZ-A3, Sony XB90EX, RHA T20 and then plenty of Sennheisers, beyerdynamics, Ostrys, Fidues and whatnot from massdrop. I simple don't know if they like them until I heard them. I mean the Noble K10 for example are amazing, but the...