Nuh-uh. The first several (1953-1958) EAA fly-in and conventions were at my home field, KMWC, in those days known as Milwaukee Curtiss-Wright Field and later changed to Lawrence J. Timmerman Field, named after a long-time county supervisor who had absolutely nothing to do with aviation. After a few years it moved to Rockford and was there from 1959-1969, moving to Oshkosh in 1970. KBUU, like many municipal airports, has the traffic pattern arranged so that it's not right over the city.
The tower at KOSH was scheduled to close due to the sequester anyway, so I don't know what moving would do for us - No matter what, there will be a tower wherever Airventure moves to for the duration of the event. Hell, even KFLD gets a temporary tower during Airventure and it's only a relief field.
Uhhhh... You mean like we already do, as required by the NOTAM?
What are you talking about? You *can* land a 747 on it. Hell, the dreamlifter was there a few years ago, and the following year the A380 was there. C-5's frequently appear as well. I don't think there's anything you can't land at Oshkosh. Maybe a 707, I hear they were really terrible runway hogs, but 18/36 is 8,000'.
So, bottom line - There is no reason to move. Period. The FAA will be there, wherever there happens to be, no matter what kind of airspace it has the rest of the year.
Now, to keep Jim happy - I'd say that if it were to move, the best way to find a location would be to start at Kansas City and spiral outward. KC is pretty much smack in between the population center and the geographic center of the CONUS. Take the first field that's got at least two non-intersecting runways and a decent sized city around it, but is at least 50nm out of town to avoid having to tangle with airliners and Bravo airspace too. Maybe if they ever close McConnell AFB... Then we could have the biggest aviation event in the Air Capital!