Carlisle Events in Pennsylvania is offereing an additional $5 discount in addition to their usual early registration discount if you sign up December 16-31 to show your car in one of their shows or S20 discount if you buy a season admission pass. Their Chrysler flea market / show (July 6-8) is probably the largest Chrysler product event on the East coast.
http://www.carsatcarlisle.com/
http://store.carlisleevents.com/