Any more, I go to Gun Broker to gauge value. It may not be completely realistic, but some buyers are paying those amounts. Yours is a shooter for sure, and should entertain you fine on the range. I've got an 18 (non pinned) I bought new back in around 1986. I was young and dumb and S&W revolvers were still relatively common and affordable, so I didn't exactly keep it pristine. The rear sight was messed up from the factory, so when I finally got it to a gunsmith to repair, I also had an action job performed and had the target trigger face smoothed and radiused. I also, it a bout of stupidity managed to use lead away cloth to remove lead build-up from the cylinder face. It now sports a polished cylinder face. Its a shooter...