[astrange]

There appear to be more competitors than ever to me. Amazon doesn't have much of a moat in their retail business (they do in AWS) since your lock in is only that you've bought Prime for the year; they're merely very good at it.

[jfim]

They do though. If one has paid for Prime, they might not even think about shopping elsewhere because they get Free n day shipping, for whatever value of n Amazon has nowadays.