Our Federalist system has one common strength. A state may serve as an template, or an experiment, or a test market for government programs and others can see how they work before adopting them.
There are a couple of state run health insurance programs around that show us how Obama care would likely work. One the the fears of conservatives (that liberal claims we exaggerate) is that the government run plan will engage in rationing care, cutting out momma from needed care because she is too old or because she is not an elected official.
In Oregon, apparently Oregon health has told a woman that the plan would not fund her needed chemotherapy, but would gladly pay for her physician assisted suicide. Videos here and here.
But that could never happen with Obamacare, could it?