But who the fuck would spend $10,000 on a pair of headphones in the first place? I'm pretty sure you can get crystal clear sound within the $300 range (not that beats shit). Not even the highest quality, professional studio headphones that artists record with costs that much.
Usually musicians use Custom in-ear monitors that cost around 1,000 usd. The ones that master audio....Well it depends on their budget, I've heard about some that use 5k USD headphones (STAX SR-009) and then there's the amplifier, the DAC and many other things that also cost thousand of dollars. Some are just music enthusiasts.
It's like a hobby and compared to some other hobbies, this one doesn't cost a lot compared to them.
And you won't know 'til you hear it =P I haven't heard either and I prefer going to a live show anyway than spend thousands of dollars on headphones.