You want to buy my 750?
Seriously, though, it's more of a regional thing, I think. When guys comment on an estimated value they usually are thinking of what something might sell for in their own town, maybe even as far as 2 or three towns over, but not much farther. Where I'm at, a CB will never sell for more than a grand, unless one of the Doctors might happen to be an enthusiast for old Hondas. Around here, as I'm sure is the case in most areas (on the broad spectrum), if it's not a twin or a crotch-rocket, it's not gonna sell. I compare the CB situation to my favorite car, Oldsmobile. For a long time (and right now, for the most part) Oldsmobiles are not as popular as Chevys and Fords, so no matter what I put into my Cutlass, I won't make a profit on it. Nobody wants an obscure hot rod. Everybody wants to be different (but they buy the same bike or car that their neighbor has
) Individualism is now about choosing a different combo of chromies for your Harley or V-Star, or Carbon-fiber and LEDs for your 'busa or Gixxer. There are a few folks who might pay a good price for a CB (or an Olds) but the ratio in a given area is terribly small. I've only spoken to one biker who wants another CB because he used to have one, and was afraid the prices were outrageous. I explained to him that he could have a very nice one for less than 1500 (in our general area to include KY,TN, IL, and IN) He was surprised. So there is on of the 10 or so percent of those folks who expect a CB to go for a high price for my area.
Yes, eventually CBs will hit the limelight again (much like older Oldsmobiles are doing), and we won't be able to get parts as cheap as we do now, but it won't matter because the bikes themselves will be going for premium prices
One last example: 10 years ago, I could just about guarantee you I could find you a '70s Cutlass for under 1,000 bucks in decent shape. Now, I wouldn't even tell you there's hope. They are still out there, but getting extremely hard to find. I know it's not really fair to compare bikes and cars, but Olds and Honda CBs are kinda in the same class. They're obscure, off the radar models, that were legendary in their own time for various reasons.
Plus, you have to look at the fact that you can buy a brand new '07 Ninja 250 for right about $3,000 (depending on how much your dealer wants to make off the bike, MSRP is 2999). Not many people who don't have a passion for the CB will pay an equal amount for a 30+ year old bike.