As far as rarity is concerned...8,530 1955 Chevy Nomads were built and those are considered rare today. A Schwinn Corvette or Huffy Eldorado is not rare. A Western Flyer X-53 is not rare and neither is a Spaceliner. All are just common, yet very popular classic bikes. An Elgin Bluebird is rare - in the day of tv shows like "American Pickers" and "Pawn Stars", a day in which we have "Craigslist", "eBay", and "Worthpoint", how often do you see Bluebirds for sale? When one does come up, how much hype does it create?
I will say "aye" to the registry.