There's a little airport in Simsbury, Connecticut that has a fly-in and car show every year, it's sort of like a car show and an airplane show together. It's not an air show, they don't have planes performing, just a lot of interesting planes parked to look at. The car show is pretty cool too, some interesting cars turn out, including usually a few exotics.
Simsbury is out in the countryside, not far from Hartford. Hopefully a few people can get over the hump of driving to Connecticut for this one, it's a really unique show and worth seeing.
http://simsburyairport.com/flyin.php