Yes, Jerry,
Dr. Amaki who is a dentist and collector/dealer of vintage bicycle parts, and is one of the most famous market trend setter today. I have been watching "market" of vintage collectable bike parts past three years.
I also realized the eBay USA became the center court of the "market". Because of the size of US market since 1960's, many parts are found here, however; many European sellers as well as North American dealers have been selling very well. Listings of bike parts eBay search by the word Campagnolo used to bring up 300 to 400 items, but today I see over 1200!
Japanese buyer who regularly in eBay that I and other seller recognized are over 100, and still increasing. The Kauzo is the top five guys in the group, and I have seen he spent over 10k in a few weeks.
Ken Toda, High Point, NC