By the way, public schools were once a "public option", and now it's the only option for all but the wealthy. A huge percentage of people pushing for a public option in healthcare are those most critical of our public school system. It's a wonder they haven't made the leap.
One could say something similar about the post office. For all but high end things (packages), we're stuck with the post office - an overstaffed, inefficient, and possibly overpriced institution if there ever was one.