Anyone in Vegas listen to the Gilmore speakers???

Yes. I heard them Thursday in one of the (at least three) rooms they were playing. I wasn't impressed (playing at very low volumes with some light jazz).
Saw them today in another room (both rooms at the St. Tropez). Totally different story!
The were playing at decent volume with some solid music.
These are GREAT speakers!
The mind blowing part of this was the premiere session bass player Abraham Laboriel who hooked up and started jamming right through the Gilmores!
I've played bass through a dual 15 inch cabinet and have blown driver cones with excessive transients.
Mr. Laboriel was slapping away at his five string Yamaha (think Paul Simon's "Graceland" style playing) with no ill effects.
The (big) Gilmores need lots of space from the listener (about 15 feet) for driver blend. Give them the room and they sound wonderful! Smaller models might not need as much room.
They were driven by Atma-sphere monos.

I missed the live bass performance, but what you say jibes with my impression of the Gilmore-based systems as sounding more like a PA than like a stereo.

Maybe it's just me -- I love planars and panel speakers, but I was underwhelmed.

I heard the smaller ones at moderate volume and found them fatiguing and a bit shouty in the midrange.

In the larger room, the build quality reminded me of shop class in junior high school as I watched Mr Gilmore and a "visitor" tapping their feet in apparent joy and enthusiasm.

Some of you may know that the cult of Linn used to suggest this type of behaviour in dealer sales training seminars.

I found it about as convincing as watching "tourists" "winning" at three card monte and almost as cheesey as the ads.