The three work horse vises the previous owner had were ancient, and probably from United. They held up well, but I wanted four instead of three. I got two from Woodworkers warehouse for less than $40 each. They were much better than the ones I got from United.
My only complaint about the ones I got from United, over two almost three years ago, is that the jaws were held together with a cotter pin through a regular washer, instead of a lock nut while the older model. When I "cranked" down on the handles I snapped the cotter pin instantly. United took them back, great company that way!
The ones from Woodworkers, probably could get from Home Depot as well, have lasted since. I have to tighten the locknuts once in a while, but they are solid.
BTW whats wrong with getting a v-nailer?
Rarely use the vises anymore but am sure glad that I have some good ones!