I'm having robotic surgery this fall. So to answer your question, yes it is cheaper. I do not have the right to sue for malpractice. I voluntarily waived that right and pre-paid my expenses at a considerable discount.
The problem is your connection between the two things. First, this means that anything could happen during the surgery. You could die. And you and your family have nothing to do but say "Oh well". Second, this has been discussed numerous times. This surgery is not half the price there simply because you can't sue them. It might take $1,000 off the price, but the other $16,000 that disappears is about the way they handle healthcare.
So, essentially, you don't like the American system, but you don't want to change it to make it better. That makes sense.
I choose what I get and when, not the insurance companies. I could go to the VA, but I truly believe I would be dead if I depended on them for my care.
That's great. I'm happy you get to do that. I'm glad you have the money to bypass health insurance. Most people don't. Most people have to abide by what the insurance company says, assuming the company will even cover them.
And you can believe whatever you want about the VA; that doesn't mean it's true.