I'm known as HeadPhoneAddict on other forums. I've had and still own some pretty incredible headphone gear, and used to do reviews. I have tonnes of headphones, in ear monitors, custom molded in ear musicians monitors, amps, dacs, cables, etc. At one point a few years back my headphone gear was worth more than my watch collection, then I sold my two best headphone amps and 2 best headphones, while doubling my watches.
@ahartfie - if you count my Alessandro MS-1 I have four pair of Grado, not three. My favorite are my HF-2 #24, and they're the last pair made from #0-24 prototypes, without the typo on the production batch labeling them as Head-F1 instead of Head-Fi - I picked them up at Head-Fi CanJam 2009 in LA when I also picked up one of the first 50 pair of HD800 ever sold. They're magical with my PS Audio Perfectwave DAC Mk2 and Eddie Current ZDt amp. My favorite custom molded musician monitors are my Westone ES-60 that I received last year at CanJam 2015 at Rocky Mountain Audio Fest. My JH Audio custom In Ears are pretty close.