I have only made it once to the Dayton Hamvention, the largest meetup of amateur radio operators anywhere on the planet. My trip was in April 1990, and I remember that Lou Josephs was invaluable in helping me to connect with the KLM flight connection at Boston Logan Airport. Lou warned me that the "Useless Air" flight from Dayton to Logan was always late. And sure enough it was. He gave me a lift from the wrong side of Logan to the right side for transatlantic departures. Made it with seconds to spare.
Oh, and please enjoy the reportage from Dayton Ohio. It was immense fun. Also recall running in to George Wood of Radio Sweden.