>"For instance, it could allow one provider to follow and match the prices of the other provider (like two gas stations across the street from one another who face no other competition)," Garmon said.
I understand this argument, but I think they underrate how much people are willing to shop around when they actually have prices to use as a metric. I would be willing to travel to get a cheaper hip replacement if I actually know what the local price is, rather than being surprised by it every time.