"The finest quality handmade Knives" may be subjectively true depending how you define "finest quality" and "handmade". Fact is, you can't spend $15 and get that knife. Instead, for $15, you get a bunch of parts. This may be true of a whole lot of $150 knives, $15 worth of parts, assembled with the right logo stamped on the blade and enough care, easily worth 10 times that price. As with anything, knives are worth what customers are willing to pay.
I've assembled three kit knives (folders). It's not like assembling a stripped down bicycle. Hell, it took all of 10 minutes each to assemble two. The first took more time. . . .I had to round over the scale slabs.
While it's true, "knives are worth what customers are willing to pay," there is a little thing called "truth in advertising."
Taking advantage of a consumer by intentionally "misleading" a consumer is the issue ! A big NO-NO is most books.