The KEF Blades (can't remember the room number, on 4th floor of atrium) presented by Hear No Evil, were quite impressive. $30k speakers that easily trounced near all of the $100k pairs make them seem like a good value for the overly wealthy.
The only exotic, high-dollar pair that really blew me away were the Violoncello conical horns on Eisntein tubes (inc. CD player) displayed in one of the Atrium's 1st floor meeting rooms. Sound so life-like it was unbelievable. They played a choir selection that so filled the massive room, you could hear every voice. Then switched to some California Girls by the Beach Boys, and then something I didn't know, but the drum kit sounded amazing, every bit of attack and just the right decay, could have sworn there was a guy playing drums in a hidden space.
Definitely worth a good, long listen