The incomparable Mark Steyn puts it well in a recent National Review piece:
[T]he acceptance of the principle that individual health is so complex its management can only be outsourced to the state is a concession no conservative should make. More than any other factor, it dramatically advances the statist logic for remorseless encroachments on self-determination. It?s incompatible with a republic of self-governing citizens. The state cannot guarantee against every adversity and, if it attempts to, it can do so only at an enormous cost to liberty. A society in which you?re free to choose your cable package, your iTunes downloads, and who ululates the best on American Idol but in which the government takes care of peripheral stuff like your body is a society no longer truly free.
There is a better path to choose in health care reform, if only American medicine is not taken over by a loony Congress in the meantime.