IMO, a properly set-up HW-19 Mk III (remove the spring suspension and use pucks, level the system, etc.) will outperform anything remotely close in price, new or used, except for a HW-19 Mk IV (typically a few hundred more). Arms are important, but pretty much all the true Mk IIIs have good arms. They are good tables and had good arms installed.
And the really great thing about VPI tables is that VPI is still around and supporting their products.