I bought an RCBS Rockchucker off eBay, listed as "heavily used", but there's no play nor "looseness" in it that I can find. I suspect that the press will outlast ME.
I agree that there probably is not a "bad" set of dies being sold, today. I tend to go for Lee dies first (what's wrong with getting a shell holder, load data, AND a powder scoop?), though their shell holders don't always work and play well with my Lyman hand primer (go figure).
I have taper crimp dies for .38 Spl. and .45 ACP from Forster and/or Redding, which do wonders for feeding reliability and tightening groups. It IS an extra step in the seating/crimping process, but well worth the effort, on the range.