[eru]

Please give me a few examples of people succeeding with the technique.

Specifically, examples of people later exploiting their monopoly to charge people more than they otherwise would have paid.

[largbae]

Ubers have become pretty expensive these days.

[eru]

Well, is Uber a monopoly and collecting monopoly rents?

[le-mark]

I use Lyft because my phone is too old to run the Uber app. This says nothing about market share obviously.

[haritha-j]

Amazon and diapers.

[eru]

Could you elaborate a bit? I'm not aware Amazon has a monopoly on retail, nor even online-shopping? Could you explain what you mean with the diapers?