I believe WWG is referring to the market for certain established, higher end stock removal makers who have, throughout the last 15 years or so, seen good, but tempered demand for their knives, but are now seeing explosive demand. S.R. Johnson, and certain other Loveless style makers. Certain folder makers, others....Loveless knives, while previously a "no brainer" investment if you found a solid deal on one, are also at a price level where the level of risk is something to give a lot of consideration to.
I think a lot of the ABS makers represent solid investments at this time. You won't be "flipping" too many of these, but solid long term. I used to invest pretty heavy in the aforementioned higher end stock removal makers. Demand was moderate, but not crazy and I felt that an S.R. Johnson chute or NY Special at $1200 was a solid investment. Yes, you could buy them all day long for that. Only a few years ago. I now see similar potential with certain ABS makers.
Pete