Groovie, I was wondering about your whereabouts. Glad everything is fine with you.
My 2 cents: You can't buy a SOHC in Spain for less than 3 grand (euros), and that's without the paperwork. That is, somebody travels around Europe buying bikes, and then sells here at a profit, and leave the paperwork for you. And that' is a big PITA.
I bought mine in 2003 for.... 1215 euro. Cheap? Now I think it was, but I couldn't sleep that day thinking that I was paying serious money for a bike with no title and not running. I believed the seller, but how was I to know how the engine was?
Going through the registration was a big big PITA. Now the bike is road worthy, scarce as hens' teeth, and I know I could list it for 6.000 euro and nobody will call me crazy. Sure thing, it would take months, if not years, to sell. There are not much people with 6.000 euro of disposable income to spend on a 40 year old bike. Even worst, the people who have that money is not good at things mechanical -in general-, so they don't enjoy tinkering. They enjoy being seen.
I saw the other day a K2 listed at 10.000 euro. I think it's crazy. But 5.000-8.000 euro for a CB750 in Spain is not crazy. They were never officially imported here, so they are indeed scarce. I agree with Buber: the USA market was so big and the CB750 sold so well that the prices are set when compared with better examples. If you have a bucket of rust you cant ask 1 grand for it when running bikes are selling for 1.5K.
I could have never put my CB750 on the road without Internet, and this forum for that matter. I found a lot of information here, advice, links, tips, and also I used internet to learn from others who had gone through the red tape of importing a vehicle into Spain. I benefitted during some time of eBay, but now, when the dollar is weak, USPS raised their prices and I can't buy from US anymore. I have to buy in euros, in the Honda dealer or cmsnl.com.
Germany seems to be the country with more following of the SOHC hondas. The average german, to my eye, seems to have an engineer inside so there is a mechanic in every rider and the german bikes are usually in top condition. Hondas were sold in France and Italy too, but those owners -probably because of lack of language learning in their schooldays- seem to have trouble with english and they have their own forums in their mother tongue, so it seems like if they are a closed group.
Riding an old bike has become, also in Spain, fashionable, so everybody with an old bike is asking for fortunes. That's where the downside of Internet becomes apparent. Before, somebody with a jewel in the barn would pay to have it taken. Now, an old man ask his grandson to get rid of the old machine. The young lad, with no bike culture, inserts the name on the badge in Google and finds a lot of gossip around the bike, so he discovers the bike can be valuable. Do a little more search, finds out the bike is valuable, and another chance to get a bargain from somebody who wanted to scrap a bike is gone.