Fair enough, re: vertical integration and the need for specialized skills that produce in too high a volume.

But the goal isn't really to scale up -- you want to consume as much labor as you can and charge the rich through the nose for it. If you need to employ dozens of spinners who can only spin for four hours a day to avoid repetitive stress injuries to supply a single weaver to make your upholstery fabric for your high end couches, great, charge hundreds (thousands?) of dollars a yard for the material. They'll pay for the privilege of sniffing at the less rich whose furniture is upholstered with fabric spun by a machine.