gunshows are a grand Ripoff!! and gun broker is ten times worse!! been buying and selling since i was 15 now im 60.. if your paying those prices your throwing money away!IMO the BB is good for one thing, information on a gun as to date of manufacture, variations, special options like sights, finishes, and stocks. The values are mostly useless, and if you think you need to look at that book to determine a value, you shouldn't be buying and selling guns, especially at a gun show. IMO again, sold values on gun broker are the most current and accurate, condition and locality is factored in, everyone is buying and selling in the same market, it's online. If you're buying on gunbroker, be patient grasshopper.