Nice thread. I'm currently tortured by a looming decision to buy one of these. I'm leaning towards the Audeze but I have a voucher that I could use on the HE-500 that would make them cost less than half as much. To go for the best value, or simply the best? Tough choice!
A less than half price HE500 sounds like a bargain! Suppose you could try them and then if you want to then go for the LCD2 you could sell them for profit and buy the Audeze. But its a tough call. If it helps any, I would recommend the HE500 over the LCD2 if you listen to a wide range of music styles as they are (for me) more of an "all rounder". But the LCD2's do what they do, like no other.