Online Auctions and Websites
When it comes to collectibles, nothing tracks the rise and fall of current prices, as well as demand, like online auction sites such as eBay. With a quick search, a collector can probably find the going rate for most Matchbox cars. Before accepting eBay results as the market rate for particular cars, however, there are several factors to take into account.
It is important to search completed listings, not ongoing auctions. There may be a dozen ongoing auctions for a particular Matchbox car, all with no (or very low) bids. This is not always an indicator of interest; many eBay auctions do not see bids until the final day of listing. Checking recent completed auctions (this can be selected through the search options) provides a better idea of overall interest and demand.
Online auctions can sometimes skew values, especially if collectors get into a bidding war. To find a car's real value, collect several results, throw out the top and bottom finishes, and average the remaining results. This should give a collector a better idea of value.
Online price guides are also available, including ToyMart.com, which provides thousands of values for die-cast cars, including the Matchbox brand.
Die-Cast Car Collector Shows
A Matchbox collector who is looking to buy, sell or learn car values should seek out a local die-cast dealer show (which cover Matchbox as well as other brands). Even as eBay as helped "shrink" the hobby by making Matchbox cars accessible to anyone, dealer shows still provide a place to ask questions as well as buy and sell. In fact, dealer shows are often the best place for collectors to find bargains, as the demand is often less competitive than online auctions.
A very comprehensive list of die-cast toy shows is available at HotWheelsCollectors.com, in the events calendar. Shows in this list are not limited to Hot Wheels; they cover all types of die-cast. Additionally, MBoxCommunity.com sponsors an annual show specializing in the Matchbox brand.
Price Guides
Printed price guides often provide a comprehensive list and visual record of Matchbox cars, even if values can become outdated with time.
Tom Larson is the author of "Warman's Matchbox Field Guide," one of the best guides on the subject. New editions are always coming, keeping the information up to date. It is available in bookstores and Amazon.com.