I suppose this is a bad topic to bring up, but what about merging of orphan car clubs, like Hudson, Nash? Also, the Riviera Owners Association (ROA) and the Toronado Owners Assoc always have their annual National Meet together. Maybe that would bring out more cars to a National.
I know that many times I see orphan car collectors collect Hudson, Nash, and KF together. then when they pass, we see them sold together.
The annual meet of separate clubs mean perhaps bigger, better National meet destinations, more variety and cost sharing. I saw 7 or 8 Chrysler Airflows (a 1930's specific Chrysler) at the WPC National meet in Michigan. The Airflow has a club but sometimes 7 or 8 represents all the cars in the National meet.