maybe should see a doctor about that lump..

Yup making My point.

So where is this marketplace to compare costs?

I'm talking between dentists....not just in one place...most people go to a dentist because it is local...not because it offers the best pricing.

There is like 0 ability to easily compare dental prices. Thus your argument although valid to what extent it works is debatable.

You’re looking at dentist as altruistic people. They’re in it to make money so if they can charge 1500 and now you’re paying the same as you did for the 1200 because the insurance company is paying more you’re still at the same amount of money I just don’t see your argument as realistic