I use that ambulance example myself. It's a pretty good visualization of why we can't put all of the health care system under a free market. However, there are

I use that ambulance example myself. It's a pretty good visualization of why we can't put all of the health care system under a free market. However, there are parts of it that can be. (And even for the instances where you really have no choice, price visibility could still provide some cost containment.)