The Pebble Beach Concours has ha da motorcycle class for the last five years. This year they are featuring Japanese motorcycles. Probably one of the 1st major shows to do something like that. I know they are interested in having a very original CB-750 Sandcast on display.
http://www.pebblebeachconcours.net/Of course you have to deal with folks like Jay Leno checking out your bike.............