I would go with the older and some current USA made PV stuff. Most people haven't heard of or played their older high end stuff. If you do a search for the Odyssey(neck through), Destiny(custom is neck through), Vandenberg(custom is neck through), Falcon(Active and custom only not the early 80's stuff), Generation, Impact (milano and torino neckthrough), Wolfgang, HP Special, and HP(set neck) you can find a lot of untapped resources of great gear at reasonable prices.
The out of productino items (everything except the HP and HP special guitar are out of production) are often on ebay and usually are in the sub $500 arena. The top guitars are the Odyssey, Destiny Custom, Vandenberg custom, and the new HP guitars.
I suggest reading some reviews and checking out the pictures as some are really magnificant looking as well as playing/sounding.
Personally, I own 2 Ody's, 1 Falcon active, 1 Impact milano, and 1 Wolfgang Special but since I calming down on my collection I won't be buying too many more guitars unless it is out of necessity. Of course I own other guitars but I figured you would only want to hear about the ones that are the best.