Went there yesterday as I'm in the area...it was helpful that I was picky about which vendors I went to go see. Was really excited to see Salk Sound was there as I've heard a lot about them on these forums and got to actually hear them. Very nice and flat with a good soundstage, Jim Salk was very informative and cordial as well. I went to go check out SVS but they didn't have the SB-13 I was wanting to hear and was catering more to a 7.1 system setup with their cheaper sub. I saw a lot of snake oil cable vendors there too that I steered clear of otherwise I would've gotten into an argument about a lot of their B.S. claims.
I got some records from the vendors in the ballroom, Acoustic Sounds was there and got to talk to them about record mastering sources and whatnot.
Overall a good experience.....I just wish VPI had their own vendor room. I saw in the booklet they were in three different rooms but it turned out to be a room where there was a VPI turntable there instead a VPI vendor room itself. Same thing with Oppo......they were listed as being under CanJam (which I guess was this separate headphone area) but didn't have an Oppo-specific vendor room, but instead only a room that had Oppo equipment as part of their signal chain. I was surprised to see Emotiva and Avalon absent from the festival, especially Avalon, who's from the area as they are headquartered in Boulder.