Yeah, getting together something that magnitude is definitely difficult, though perhaps not impossible.
Finding a meeting place could require a cost, though a free (or very inexpensive) spot would be ideal. For those who are traveling and need somewhere to stay, an idea would be to book some sort of group reservation... groups always get hotel discounts anyway... and anyone staying could pay in advance, maybe? Just a couple thoughts.
I do agree that regional mini meetups are probably easier. Perhaps I should take on the Florida fat chicks first
