I dont understand this "you can keep your private doctor" stuff. If I have raised taxes on me to fund the government program, why am I dishing out more money for my own private doctor?
Presumably because you want a higher quality of care as opposed to a basic one.
Higher quality = more money.
Difference is that if you're down on your luck, for example you get fired, you'd still have some form of healthcare instead of none.
Oh and yeah, healthcare would be cheaper.