I paid $750 for a 650 three years ago. Good condition, but no box or 22lr cylinder.
I found it hard to hit anything with it given the lighting conditions at my range. Found it hard to see the stainless front ramp sight.
So I put laser grips on it and now it is quite accurate.
I find it a good gun for DA trigger practice and plinking. I don't carry it for defense as I have better alternatives.