Good list, but some of us have retained some of the alleged “disappeareds”. For me, that would be handwritten letters ... privacy ... dead time.

I do use Amazon but only if I can’t find the same book in one of the terrific SF used bookstores whose numbers seem to be shrinking. And so far I haven’t succumbed to Netflix, because the smallest and best-stocked VCR/DVD rental stores are dying, the ones that come up with rare, esoteric and unique books. Was depressed to hear that Google is trying to pick up an exclusive on out-of-print books.