You'd be surprised what you can do with, eg, billet aluminum, which is available essentially everywhere and requires no elaborate supply chain to source cheaply

You'd be surprised what you can do with, eg, billet aluminum, which is available essentially everywhere and requires no elaborate supply chain to source cheaply. Something like a cell phone or a car has an incredibly elaborate bill of materials and isn't representative of the sorts of product where non-mass-production is even in question.