Earlier quoted context omitted.
Interesting logical jump from "medical facilities overcharge" to "we desperately need single-payer healthcare in this country." Single payer is certainly one possible solution, but it's not the only feasible solution, despite conclusions that availability bias might lead us to. I'm curious: what was the final price after insurance negotiated on your behalf?
You need single payer because you can overcharge anyone who can't negotiate lower rates (i.e. individuals who's personal business with the healthcare system doesn't have much if any effect on it). Compare that to a state bargaining on behalf of 10+ million customers.
Although, in a way it does kind of make sense. Unlike consumer goods (television, cars, etc.), one's health is something they're likely willing to break-the-bank for. So without any kind of restraint, I could see costs getting out of control. The hospital is focused on making as much money as they can, and the consumer is focused on preserving their health. If one doesn't have their health after all, what do they have?
Add an ever increasing demand (baby boomers are aging rapidly) and suddenly, things begin to look much worse for the demand side of the equation.