I just refaced a modern soloist. While I have some preference over the vintage models they are not bad at all. The factory facing and baffle work were terrible but the basic ingredients are there to make a good piece.
My advise at the risk of sounding self serving (or at least being accused): Buy used, buy cheap and have it worked on.
I couldn't agree more. Ever since high school I've played on vintage mouthpieces that were refaced. Though I was primarily a clarinetist, the idea is the same. I found that vintage pieces, either the due to the rubber compound, or the internal dimensions, provided a generally better core sound/response. I'd rather spend $75-80 on a vintage scroll-shank Selmer and another $50-60 having it refaced by an expert craftsman, than spend the same or more on a modern piece with shoddy, workmanship.