Thanks for the responses.
Yes, I've read the price vs. condition link...good stuff. I realize that shorter trailers will be more expensive and that some of the longer 70s trailers can "droop" in the rear. That link also mentioned that 1970s trailers tend to be in a state of elegant decline, where they are still quite original but don't really need to be restored. I can see how that would affect the price.
I'll try to contact the owner of the '73 Ambassador to set up a tour.
Tin Hut: I live about 25 miles from you. Yeah, I'd love to see your '67 Tradewind. If you don't mind, feel free to email me with details at email@example.com