In my area, the only way that even a 66 no-dash would be able to command an $800 price tag would be if it were ANIB. That being said, prices can be highly dependant upon your area and in a place like California, I could belive that $800 might not be unreasonable for a very clean M66.
Smith, and Wesson, and Me. -H. Callahan
Well waddaya know, one buwwet weft! -E. Fudd
All bad precedents begin as justifiable measures. -J. Caesar