Scroll to the bottom of the Reverb home page and look for Price Guide under the Explore category. Click on Price Guide and you should be able to type in a specific piece of gear and get some info, including asking price and final sale price. I tried Wurlitzer 200 and got four different results based on color. Unfortunately they don't let you look at the original listings like ebay, so it is hard to gauge condition based on just the final selling price. BTW, I'm using Chrome on an older Mac.