Sorry, I thought you were still talking about running a speaker shootout event, or trade show type big shindig where people may fly in from around the country. That requires resources, planning and a small committee to run it and manage volunteer helpers. Obviously that can't be done as a g2g. As for g2g's it's just like any party but with audiophiles. You can make it as complicated or not as you desire. You make the rules for your party, and it can be however you like.
People haven't stepped up because hosting a party at your house is work. Cleaning it, feeding them, and often the wife has to at least help, often they will do much of the background work, so it is a family sacrifice that not everybody can commit too in advance. Maybe the shyness factor, or wondering if their system is good enough, or big enough space affects deciding to host that first time.
Can some of the other AN members chime in here about g2gs and Raves in small houses or without magazine cover type systems? How to run a successful first audio meet at your house? That would a cool thread in itself. Feel free to start one...
I especially love how the NY groups have regular monthly meets. They are in NY where there are thousands of audiophiles, and their houses are relatively close. But people still need to show up and their individual commitments to their clubs are inspiring. They have volunteers to organize it, they carpool, loan equipment to each other, and they have a blast - every month. I'd move there just to get in on that action.
Our NC group has had periods of regular meetings, as often as every other month at times, probably every 4 months on average nowadays due to many of the usual hosts having other priorities. With the economy in slo mo, many people are not buying new gear to show off, so they think less reason to meet. But that's a good reason to meet. The same good system is fun to visit over and over, especially if the company is fun.