I've been thinking of this too for quite a long time. I think it would be nice to travel somewhere in Central Europe, rent an Air B&B, a summer house, or some rooms in a cheap but cozy hotel, and party there for a few days. We could organize simple activities, walk in the streets, and gather somewhere in the night to eat and have fun. Nothing fancy or expensive, just food, drinks, music, and a comfortable place to crash for a night or two.
I would gladly help with anything on the spot. Being overseas, it could be a bit hard for me to contact venues. But once there, I could arrange anything from grocery lists to car rentals or anything to ensure the security of everyone.
Money is not an issue for me, so I don't mind taking a bit more of a chunk for those who are short.
I think the best way to organize this is to put 2 or 3 people at the top of a committee, and discuss the ways we could guarantee the organization of such an event without losing too much time and money. Because we all know that everyone's really eager to join a gathering at the beginning, but as time flies, less and less people do commit. Choking is a national sport. So we have to take that in consideration. It would be very disappointing to organize something for 25 people who are interested, only to have 5 attendees at the end. Early deposits could be the way to go.
Anyway. Yeah, I'm in!