I have bought and sold a few in the past few years, anywhere from 700-900 depending on condition. I had a '66 last year that was a true cannon that sold for 900. I have a '71 D-40 in for retoration right now, I have the neck off for a reset, and it needs a top splice and a small side section replaced. It is also a boomer. I will be content with 600 when it's done.