It was a pretty cool event - way too much stuff to see in the under 4 hours I was there. Lots of stuff that costs more than I would spend on a car.
Aperion was one of the few 'budget' companies there. The Aperion folks surprised me by knowing who I was - apparently they keep an eye on various forums even if they aren't posting. GR research and AV123 were there as well, but not showing their less expensive items (although GR did have the AV-3s out in one room). Mostly a very high-end two-channel event. Only a few multichannel rooms (Aperion, AV123, Epiphany).
McIntosh got my vote for the best sound of the event, although the hotel rooms were less than ideal setups. Many rooms sounded better if I moved up into a more nearfield range.
There was a good mix of vinyl and digital being played, along with a couple of reel-to-reel setups.