Not a lot of difference there. I think it was about $100 about 10 years ago. Not sure what the extra $100 was for, maybe the psychedelic grips. I changed the grips on mine. The entire revolver was more or less spec'd out by Jerry Miculek. I can never remember how to spell his name. Nice revolver and good times for sure.
Welcome from an Old Tucsonian - Grew up there before WW2, when Speedway was a dirt trail! I still come from San Diego to do the Expo shows sometimes. I'm also a DAV life member & Co-Founder of the S&WCA 52 yrs ago.. Ed