Duster
I believe it is not so much that some of the members here are stating their hate for the tradesman because of age or otherwise but rather that depending on ones needs for the same amount of money there might be better alternatives.
AngryBeaver already summarized the relevant facts very well. And as he pointed out to start with as compared to other US made vises (with the same jaw size) including the
REAL Wilton bullet series vises, tradesman are light weight and are not as sturdy.
Take the following example and staying with the Wilton theme, a 6" Wilton
Bullet 600s weighs 156 lb where the 6.5" tradesman 1765 weighs 71 lb. Moreover I believe tradesman are not made from the same high strength material as the bullets.
For the record I have had only one Tradesman but was not too impressed (as compared to several other vises that I have which include Reeds, Parkers, Wilton bullets,Prentiss, and Columbians) with quality and in particular with the jaws (main jaw inserts and pipe jaws) as they are made from powder steel (not solid tool steel) and therefore have a propensity to break.
The attached photos are from my Tradesman. As you can see the busted pipe jaw texture is very grainy and porous (for some reason it always reminds me of texture of a Kit Kat

)
Personally for the kind of money that
Schurtjl is willing to spend, I would look for other 4"-6" machinist vises (Reed, Rock Island, Athol, Yost, Hollands, Chas Parker, Columbian, Wilton bullets, etc) in decent shape. But but hey that's just me and to each his own