I'm sorry, I didn't mean to imply that 50% was standard. It's just the observation of one person who has bought and sold a few bows. Whatever discount a bow may sell for off list price is a result of a lot of things, like the economy, the type and specs of the bow, and the demand for one particular bowyer's bows over another's. 10 years ago, the market for used bows seemed to be stronger than it is today; maybe there were less of them around. 10 years from now, used bows may be selling at a premium if there is inflation in the economy, perhaps a shortage of materials, and a variety of other factors.