Value of Futterman Amps

Anyone else out there have any insight into issue raised by Jctubes? I thought the motivation was to allow retailers to beat us down on trade-ins (just kidding about the retailers, but really want to know if anyone else can support Jctubes position).

Swampwalker- After having reread my post, it almost sounds as if I'm suggesting an insurance conspiracy! That was not my intent. I do feel that one function of the BB is to assist dealers and insurance companies in assuring that they not over pay for a used product. This is rarely beneficial to the general audio buyer/seller. Just MHO.

Jcbtubes- thanks for clarifying. Didn't sound totally out of line and made me wonder. Do you or anyone else know how the values in the Agon on-line "Bluebook" compare to the published book?

Original Julius Futterman OTL amps are the "Holy Grail" of tube amps due to their superb sound quality and rarity. I paid $1350 + shipping for a recently restored pair of H3AA's. No's 56 and 57. And last year's purchase of a Harvard Music Futterman single-chassis stereo OTL amp for $2500. Rare stuff and money well spent! 

Sell them to a guy in Japan they love old stuff  or fix them up .Good luck.