Final choice is up to you & what fits you& your needs of course.
But if its me -im not going to buy a used gun when i can have a compariable new one for less then the used one.

Id go with the/ a Ruger myself.

Did ya check out& price a compariable( to the S&W above) ruger Gp 100 357.mag? Or a redhawk? We have those 2 & the super black hawk & like all 3 a lot. Dont have to much personal experence with the smiths( had/owneda fewof there38.,s in the past- (always noticed they(S&W) where a bit pricey compared to the rugers we bought instead)