This sounds like so much fun! I have been in a small yahoo low carb group since 2003 which had a planned weekend getaway several years back to meet face to face. Several SAID they would go but only four of us actually went!
We had a good time and one gal who I particularly got along well with on line, was as great in person and we really cemented our friendship. Another one was nice, just not much in common aside from being fat and struggling. The fourth was a regular PITA!
It was a good weekend though and fun to share stories, which was easy to do since we already knew a lot about each other from the group so made it easy to "go live".