I've seen average ones sell from $2,000-4,000 on auctions. last summer we bought an above average 963 from a dealer for $3,000 but it had just been traded in and he priced it to use before he saw it and it turned out nicer that he was told.
North of Indianapolis I went to a sale 3 wks ago where a nice usable 863 went for $ 850.00. I'm still kicking myslef for not buying it. The cart it was sitting on brought the same price as the head. I know you could not touch that price anywhere else..