Do you know the year yours was made ?I have owned one for MANY years and was pretty good shooter...but the quality is not in the same league as the Blackhawk. Matter of fact, mine currently resides in the safe and will not lockup on 2 chambers...and it has never been fired 500rds and those have all been only barely magnum loads.
I would probably not pay more than $250 for one and it would have to be perfect.
But, if you want one...pay what you think it is worth.