I don't know chef's knives from Adam, but I'll counter that with some stuff I
do know about, which is hand tool woodworking.
TL;DR: I buy handmade saws because they are demonstrably superior.
Time was you could not buy a quality Western saw new for love or money[1]. And by "time was" I mean "as recently as six to ten years ago". Independence Tools were the first people since the 40s, probably earlier, to make a dovetail saw worth using and that was in 1996 or so; if you wanted a full sized hand saw pretty much only the Lynx/Pax brands existed and as an owner of three of those let me tell you they do not come ready to use (think re-setting, resharpening, and making the handle comfortable to use).
Most people working in the western tradition used their grandfather's factory made saws, which despite being factory made required extensive hand work to e.g. get the taper grind right.
Relatively recently it has become possible to buy a very good mass produced dovetail/small carcasse saw from Lee Valley. But those saws aren't very old, and nearly everyone else in the industry (and it is an industry now, albeit a small one; I can't even remember all the small-factory superb saws made now. At least a dozen different marques) does it basically the way Disston and its competitors used to; skilled artisans.
It would not surprise me in the least to learn that cheap factory made knives have bad handles, bad balance, bad steel and a bad grind, and any one of those things can screw up a knife you are using all day every day.