I've gotta say, given the myriad of high end amps, dacs, and headphones I have experienced over the last few years. I am becoming more and more sold on the objective approach.
O2 amp, ODAC, and now a neutral sound signature all strictly based on measurements, and I can easily say this is the best sound i've ever heard.
The same reason i don't let anyone give me a hard time for using $1000 headphones, and a $50 clip zip as my main audio rig.
and the same reason i still buy all my cables from amazon for $10 or less.