1) I'd just like to say the DMV in Oregon is an incredible experience. It certainly doesn't have to bad. I've experienced it in Georgia, which was awful. But health care now is a massive problem. I've had to change health care providers six times in the last two years because of it being tied to employment.
2) Because it's actually cheaper to have single payer. It's huge leverage in negotiation. It will catch things quicker in more people, which means better outcomes and less dire (and expensive) treatments.
3) In Germany you can get supplemental medical insurance on top of your national Healthcare which can get you better care. Additionally there are still private practices.
4,5,6) Compared to the rest of the world the US does indeed pay dramatically inflated prices, which has a depressive effecton the finances of the less wealthy. If you're saying you'd rather people (like those waiting for Medicare to get diagnosed) suffer so you can be richer, well... at least you are honest.