Cannot say about VRef, but Blue Book uses reports of sales from dealers and brokers for much of its information. Several factors enter into this picture. If you are a dealer you probably don't bother with the bottom of the line aircraft, not much profit in them, and they usually are direct seller/buyer transactions. This leaves little for the dealers/brokers to report. In additon, Dealers and brokers want to drive down wholesale prices of aircraft, so they can acquire them cheaper or at least have a bigger markup in them. They do this by selectively reporting low priced sales and high priced sales depending on condition, hours, etc. to manipulate the prices to their favor.
It would be nice if someone did a "Airplanes Below $50K Blue Book" and encouraged individual sellers and buyers to report transactions so the data could be honestly compiled. Probably never happen. Buyer beware.
Charles
