You need to "get out" more.
FYI, Pro-techs are no more expensive (and often less) than Benchmades, MicroTechs, ZTs or Spydercos, which are all w/in pretty the same general mid-price range for knives these days, regardless if they are manual or auto.
However, MicroTechs and Benchmades tend to run on the high end for autos; higher than ProTech. So, many Pro-tech autos are a "bargain" in comparison.
Does Pro-tech even make manual folders? I only buy Pro-tech for their autos and I only buy BenchMade and MicroTech for the autos and/or balis.
As for mid-range priced manuals, no one made (emphasis on "made') them than ZT and no one makes them any better NOW than Spyderco, which is why I own 40 "vintage" (and no current) ZTs and over 130 Spydercos (both vintage and current).
I also have a lot of vintage Kershaws (just sold off all of my cheap contemporary ones) and some CRKTS (vintage and contemporary) but that's another matter.