Just do it at CES/THE show. Much more to do and less work to organize.
This sounds like a great idea, but it requires a lot of planning and financing. And in the end, the planner of the event would probably have to charge for it. This would detur people from going considering the expense of travel added to the price tag of the trip. Then there are those of us who work and have limited vacation time...
What I would suggest is something a little less grand in scale. Perhaps metropolitan Audiogon get togethers? Start with announcing a dinner at a place local to you and anyone at Audiogon who wants to attend must RSVP. This could be a very cool idea.
On a national level, getting together at the CES Show is much more viable.
Planning and Financing Tok? Isn't that the ground floor introduction to "high end audio"? I just looked at your 2 channel system. Planning and financing does not seem to have been a concern up until this point! On a more serious note, you're el correcto. If it started to blossom from a regional seed, perhaps in restaurants or catered events, maybe with assistance from Audiogon? (You guys listening?)
A bunch of us had tried to plan a meeting in New Orleans this year and it just never happened, we all have busy lives and do different things. Trying to organize this many complicated systems to blend into one is nearly impossible for a small group to arrange. That was only 20-25 of us and the idea lasted about 1 month before we all got so tired of trying to work around everyone's schedule that we just abandoned the whole plan all together. I do like getting together with local audiophile friends, I have met many of you folks through out the last few years and am hoping to meet many more, but its hard to get from place to place. Also I have found with audiophiles a group of 5+ sort of ruins things, rooms become to crowded, and uncomfortable- no one seems to enjoy things. When I travel I try to get a hold of audiophiles in that area for a few reasons: (i) to meet other audiophiles- after all we aren't that numurous (ii)hear gear I don't have or am not familiar with and to see what others like to listen and how they like to listen and (iii) meet some locals in unfamiliar towns and see what there city/town really has to offer- private tour guides. The differences I have seen are tremendous it is really an enjoyable splash of culture. The idea of getting a large group together I think could be more detrimental then beneficial for the group as a whole. I would suggest members try and get together with other members from your area, you'd be surprised how many are literally in your back yard.
Over at head-fi there is a sub-forum for "Meetings, Parties, Get togethers" (see http://www.head-fi.org/). Of course it's quite easy to lug along your own headphones and headphone amps. With home audio systems, the execution may be a little tricky - other than an Audiogon party at the CES Show as others have suggested.
Let me throw out an idea for starters. Stereophile is going to once again have their High End show in San Francisco in June.
I grew up in San Francisco and go there fairly often; as I still have family there. If there is enough interest; I would consider the possibility of getting a hospitality room for Audiogon Memebers (and their spouses if they are attending) during the show.
It would simply be an informal place to stop in at, meet some of the other members, and maybe relax a bit, and compare notes on the equipment on display. If the memebrs wanted to chip in towards the room rental - that would be okay with me too.
What are your thoughts? This could simply be a low key way to just meet and get acquainted at a worthwhile show.