Personally I give the Sampson no extra credit (or dollars). Phil is building great quality now. There is plenty of reading you will find on older and newerposts about that though.
I have seen a couple ebay sales for the Chieftains from 1550-1700. That was for a 2x12. I bought a 96 for I think 1700-1800 a few years ago and sold it for about the same. Not many for sale but if you are patient.....it is a buyers market.
oh im not debating man...im not sure what it would go for because prices can be all over the place on Matchless amps...i see Chieftains for 1800 sometimes and i also see them sell used for $2300 sometimes..so not sure about samson era stuff..i got an unreal deal on mine...2200 shipped for a brand new Chieftain 2x10...it was the store floor model and i talked the dude down BIG TIME!!..its amazing
I see some of the best deals on floor models ( Matchless in particular), although they are far from brand new as most have been turned on and off more than most amps guys on tgp have owned for several years.