Oh, yeah! Here are a few:
Dania Beach Vintage Motorcycle Show in Dania Beach, FL - January 26, 2013
International Vintage Motorcycle Swap Meet and Bike Show in Eustis, FL - March 8-9, 2013
Vintage Motorcycle Show & Swap Meet in Hanford, CA - May 18, 2013.
AHRMA Vintage Motorcycle Classic in Elkhart Lake, WI - June 6-9, 2013
AMA Vintage Motorcycle Days in Lexington, OH - It happened July 20-22, 2012. 2013 dates not set yet.
Harvest Classic in Luckenbach, TX - October 25-26, 2013
If you find yourself in Southern California, the little Danish town of Solvang has a motorcycle museum worth seeing.