I agree with most of your positions here, that shows and dealers are not optimal, but in a lot of people's cases, shows are the ONLY option for hearing a good cross section of gear because all the brick and mortars in cities even with a million plus people, like where I live are ALL GONE!
So manufacturers don't get to play the "I can't make a hotel room sound good" card........any more.......
Too many folks in the room......doesn't play anymore either.........
Lots of manufacturers seem to be able to make their stuff sing at the shows.......
I've heard the 7s with several people in the room and with no people in the room, from the center and from front row and everywhere else......and they sounded boring to my ears........conversely, every time I've heard the quatros or treos, they sounded much more alive and engaging........commentary in the rooms from others seemed to agree with what I was experiencing......
I am a Vandersteen fan, owned Vandy's most of my audiophile life and indeed, if I ever decide my Magnepans are too large visually, I will likely look at Quatro CTs
But never in my life will I consider paying 50 g's for a pair of mono amps that can only pump 600 watts into 4 ohms.......I don't care what novel fluid technologies are inside it..........there are a whole bunch of world class amps that punch way above that in terms of headroom, sound quality EVERY bit as good or better (yes I've heard them) and their components will last a lifetime too........Ayre, Conrad Johnson, Convergent Audio, Bryston's Cubed Series...Constellation....Pass Labs...I can go on and on.......
Does that mean 7 owners won't buy these? No.......they will.......
but for me it is still BIZARRE that for that kind of coin, they don't pump out 3000 watts into 8 ohms of the cleanest and most musical power on earth.......as they should as one of the most expensive pairs of mono amps in audioland.......and comparatively one of lower powered ones.....