Ok. I Will address the need for a stationary venue for the Nats. Yes it is more cost effective to have it at the same venue each year. Not only from an organizational point of Veiw, there are also a ton on volunteer staff that need to be organized and there are huge equipment issues. Shipping things such as sailplane winches, batteries, generators, timing devices, sighting devices, turn lights, turn buzzers, pylon cages etc. out to multiple sites would be a huge expense not to mention trying to find staff that knows how to set up and operate the equipment. The equipment I mentioned are for just two events, R/C Soaring and R/C pylon.
Now, let's take just one single event for an example. Other then Muncie, what other flying site in the country has the facilities to host R/C Soaring? We are talking room to set up a minimum of 6 winches, landing area for 12 + landing tapes, have parking available for 150-200 vehicles of which 20+ will be motor homes and have a flying area of close to a square mile?