In nickel plated, $150 sounds about fair for both parties. DOuble check the chamberings though. I think those are chambered for 38S&W short rather than 38spl. 38S&W short costs about double from what I have seen.
Mike, Iver Johnson produced the Cadet from 1955-1984, the Rookie from 1975-1984 and the American Bulldog from 1974-1976 which where all chambered in .38 Special.