Those are usually made in Pakistan, India or China. $20.00 to $30.00 wouldn't pay for the materials I use in my knives. Much less the sheath.
What irritates me are the ones that buy their blades, slap some scales on them and call them "CUSTOMS" but it happens all the time. Nothing wrong with using blades that someone bought as long as they are up front and honest about it.
I agree with you bro, especially on those that slap scales and call it CUSTOM. . I now how hard I work to stamp my Jank on a blade.