Capitalism doesn't work in captive markets such as healthcare.
Example 64,329 
https://twitter.com/cbsnews/status/945882724350529536 …
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Multiple sources don't mean it's not a captive market. There are multiple vendors in stadiums, too. It's captive because when you need healthcare - for example, you're in a bad car crash or are diagnosed with cancer - your choice is to either pay whatever they ask or die.
