You asked about "more common models."
After two tours of SE Asia, I got out of the service about a year before the fall of Saigon. Once I got settled back in the World, I bought three new S&W revolvers at Montgomery Ward. They were:
Model 17-3, 6"
Model 64, 2"
Model 28-2, 4"
I paid less than $150 for each of them. IIRC, the HP was the most expensive at $147.50.
Just before I moved to Alaska in the early '80s, I bought a new Model 14-4 with 3T. It was $219 OTD.
Jack