It's a confusopoly!

They're most obvious with "basic" products like energy and comms - in theory what is delivered is mostly undifferentiated kWh or GB but through the magic of "confusing plans", marketers have succeeded in making comparisons very difficult for regular people.

(You can do it, but you need OCD, a year of billing data and a spreadsheet - which greatly exceeds the cognitive effort most people will invest in choosing a mobile or energy provider).

The US healthcare sector seems to be the largest, most intricate and most successful (in terms of gdp extraction) confusopoly in history.