the markets fluctuate depending on trends and demand. For example, before the cafe resurgence 1970's hondas were bottom dollar, now a running one can pull a few grand depending on condition, etc...
The best bet is to browse your local Craigslist and ebay to get a feel for the trends in your area and nationally.
When it boils down to it, all that matters is what the bike is worth to YOU.
The sites offer you a great variaty of vintage motorcycles. These sites can also give you the value of your own motorcycle so you can decide if the repair costs are worth it.
KBB also has values for motorcycles just type in the google.com search bar (KBB motorcycles.)
At Vintage Bike they provide a detailed classified section for those looking to purchase or sell a vintage motorcycle. They also have over 8500 photos to look at, contact information and accessory/parts selections. At the Classic Bike Shed, you can purchase vintage motorcycles, search by price, distance, make and currency. They allow for a direct contact with the seller and several makes and models to choose from. Classic British Motorcycles gives you the full spectrum for purchasing a vintage motorcycle. The site is organized by Make, Model and Year, they have a list of auctions and shows, they offer specs for each of their vintage motorcycles listed and have a vast selection of magazines to choose from.
A vintage motorcycle is a motorcycle produced before a certain year. Motorcycles produced in the 1970's and years previous are considered "vintage". The best IMO are vintage British bikes, nothing beats a 1960's BSA or Triumph!
You can find vintage toys at hobby shops. You can find vintage toys on eBay or at a pawn shop. You can get vintage toys at antique shops or flea markets.
You can find vintage dresses for sale at garage sales, stores where they are not exactly vintage but are designed with vintage designs such as etsy.com or urbanoutfitters.com.
Kbb.com under motorcycles Autotrader.com under motorcyles
Vintage motorcycles can cost any where from around $5000 upward with some costing several hundred thousand dollars. The condition and model are the two main factors which influence the price.
You can find the Yamaha Virago motorcycles for sale online from auction websites such as eBay. Alternatively, you can also purchase these motorcycles from classifieds such as Craigslist.
You can find vintage kid's clothing online at ebay.com. Another great site for vintage kids clothing is http://www.vintagetrends.com/vintage/kids.asp.
He has a Porsche 911, A vintage Dodge Charger, a vintage Mustang GT, a Morgan Aeromax, a Land Rover Defender, a Opel Kadett (Oliver) and several motorcycles He may have purchased or sold so this list may be a year or so out of date.
On Stores or on the internet