The GR-Research N2X is definitely great sounding. It would probably be 3rd on my list above, and it's several times cheaper than the others above it. (not even in the same ballpark as the Focal, price-wise)
I wasn't a fan of the Salk HT4 when I heard it at RMAF last year, but I'm not sure how much to blame on the room. Some rooms were obviously causing certain problems, and other times it was a little tough to tell. If found the mids a bit uneven (especially at the crossover to the tweeter) and the bass to be bloated and boomy, with a significant dip in the upper midbass region leaving male vocals without any weight. Were any of these issues present at AKfest? Maybe it was just that bad a room at RMAF.
Speaking of high end audio shows, aside from the rooms not being well treated (most amusing are the rooms with expensive, esoteric acoustic treatments that look like some sort of spacecraft and the room is obviously still very bad) some of the designs are just not very good. It seems some designers will cram as many expensive drivers and components into their speakers as they can, but they aren't well integrated or just plain ignore physics. I was sorely disappointed the first time I went to RMAF, as even my novice understanding of design and acoustics made it obvious what some of the design mistakes were.