True, point well taken.
However , have you noticed what the early 80s Honda CX500 turbo goes for on evilbay ?? It in my personal opinion is a very interesting collectable that goes for a sensable price in reguards to todays sometimes absurd collector prices.
I have owned at least 30 bikes that fall into todays "Desireable" collector catagorys, and the CB 1 may well fall into favor sometime down the road too. I dont think it will ever be worth a mint, like say a vintage CBX however.
Finding a bone stock, low miles, completely unblemished bike would be the key.........but what fun would that be to look at it sitting under a cover in the shop !!

The CX500 turbo was one of my choices when I decided to get back on a bike. The potential problems that not having maintained the oil changes can have on turbo life and the expense involved made me shy away. They are a very nice bike though and I agree can be very good value.
My reasoning when buying the CB 1 was that it would provide a fun ride, reasonable mileage, cheap insurance and a good return on investment down the road, assuming that I don't have any trauma with it and maintain it in tip top shape as I would any vehicle anyway. It certainly has fullfilled it's role well up to now.
I bought mine off ebay as well and paid just under $2500 U.S. It has less miles on it than the one just sold. Mine had 8100km.
It will definitely NOT remain under a tarp in my garage. I already have put on about 1000km in a month. As soon as I get my new rubber (hopefully tomorrow) it will be ridden much harder than it ever has. The original tires had huge chicken strips when I got the bike, although they are much smaller now. I am blown away how much better than my previous bikes it handles and I can't wait to see what it feels like with modern technology sticky radials.
Clark