AKingsbury on Nostr: Sure, Amazon is dominant. But in what do they have a monopoly? What can I buy ONLY ...

Sure, Amazon is dominant. But in what do they have a monopoly? What can I buy ONLY from them that I cannot get the same thing or a perfectly adequate substitute easily from elsewhere (e.g., sure, they have a monopoly in their branded goods, but other perfectly suitable substitutes are available)?

As to the amount they get from the government, they get BILLIONS a year, but also a lot of other government assistance.