It's the high prices that makes it so more people can hear them. I know it sounds counter to common sense, but it helps STOP hoarding. Someone has a pair of HF1s they bought on a whim. They think, wtf, $200, I'll hold on to them. Someone else REALLY wants to hear them, but no one is willing, because they're special, and not really replaceable. But then someone offers $400. That's a lot of beer and your money back, so wtf, I'll sell em. Bingo, someone gets to hear cans that were otherwise unavailable.