I dunno, Alan, I just took a quick look at Commercial Ektars offered on eBay. Today's highest asking price is $775 for a 14 incher in barrel. The vendor is gokevincameras, whose asking prices are usually absurd. Asking unfortunately isn't getting. Sales prices are typically lower.
A lens coveted by members of the HK Old Lens Club, viz., a 60/2.8 Boyer Saphir in a barrel that looks like it goes into a projector brought $860 in November. Closer to home, two TTH Cooke soft focus Ser II brought at least $6k each. Closer to my home, as in I have one that cost much less, a 4"/2.0 TTH for Vinten F95 aerial camera brought $1,998. That's pretty cultish.
Cheers,
Dan