In production folders, what I think is disappearing is handwork. Yes, they're factory knives, but a little human touch in the finishing would go a long way.
Want to improve the fit and finish enormously on any Benchmade (or EDI, Emerson, U.S. Spyderco, etc.) - take a 400-grit belt and run it quickly aroun dthe handle edges to flush up the scales with the liners. People talk a blue streak about "tolerances," but knife parts made separately on different machines will never have the clean fit you can get by simply profiling them together.
Take a look at Seki-made knives, which have most of their finishing done by hand. Yeah, they vary some from piece to piece, but the fit is universally tight and the level of finish is high. Perhaps CNC'd knives can achieve this under tightly controlled conditions in small production runs, but it's clear to me that those from most factories don't come close. Excellent fit and finish is still best achieved by handwork, IMO, and this is disappearng from modern production knives.
-Drew