I learned a lot from a domestic slip-casting company as a kid. It taught me big heavy things are not economical to ship, and thus remain locally competitive in a global market even when competitors are 100% subsidized. Amazon shifted this calculus a bit, but is still constrained by energy/fuel costs.
The power of plastic is automated cycle times under 45 seconds, minimum infrastructure needs, and shipping weight. In a way, Tesla Giga Press technology leverages similar strategies for Aluminum parts.
Value blindness is often accepted in consumer markets, but can prove fatal in industrial or aerospace products. Hence the rules silly people try to work around to make more money. =)
This isn't true. Porcelain is brittle and delicate, and usually shatters when dropped. It's easily broken through normal handling. Just guessing, I imagine most new inexpensive porcelain dishware is purchased to replace broken stuff.
Sure, if you put it in a cabinet and never use it except for once-a-year special occasions, it might last a lifetime, but the stuff you use every day won't.
Meanwhile all the cheap IKEA dishes I bought as a student always broke within a year of purchase.