Shawn, Not to argue, but maybe debate the Generational Point. I really respect your views and product knowledge.
I have no documentation to back up my points except 76 years of experience. In the car hobby it appears to me that the popularity of collectable cars/trucks/motorcycles follows the age of the participants. It seems like the most desirable model is the one that was just out of your reach when you were growing up, maybe starting your family, buying your first house, etc. For me it was 1957 Fords, so I now have a 1957 Ford Ranch Wagon. My wife wanted an "Early Bronco" to satisfy her burning desire, so we built a stock original 1970 Bronco with "three on the tree".
But my 56 year old son, has no excitement for any of my early Schwinn Balloon Bikes. He grew up during the beginning of BMX era and his burning desire is Early BMX bikes. He's not into just BMX imported bikes, they have to be original early USA built BMX bikes.
If my observations are correct, the resale value of those mint condition Schwinn Cycleplanes will be at "rock bottom" in another 50 years after we are all gone.
For consideration, John