No Adagio Jr. for sale?

On any given day there will be 1-2 pair, sometimes 3 pair, of used Acoustic Zen Adagio speakers for sale on Audiogon. I have seen only one used pair of Adagio Jr. for sale in the last year. Is this an indication that original owners of the Adagio Jr. are much more satisfied with their speakers than are original owners of the floorstanding Adagio? Any insight would be appreciated.
It can mean any number of things, people who own them keep them or they didn't sell well and thus there sren't a lot for sale. Make up your own scenario.
More likely it's an indication that a lot more Adagios were sold than Jr's.