And you ignore that 3d printing is not about printing things you can buy.
Where can I buy a Garmin to BMW GPS adapter plate? nowhere
Where can I buy headphone hangers for my specific desk? nowhere
Where can I buy a Death Star dice box for my friends that are Star Wars RPG lunatics? nowhere
Where can I buy a switch delete plug for a 1979 civic? nowhere
Where can I buy a China bolt style red 3Watt LED to Yamaha rear tail motorcycle mounts that look stock? nowhere.
3d printing is for creating and printing things that you can not get, its for people that use their brains and create and then want to effortlessly get a plastic part.
It has never been a "print out these things that you can just go buy" and I have no clue at all where you got such a horribly uninformed idea that it was.