One of the arguements against public health care is that ballooning costs will cause it to eventually consume the entire federal budget within a few decades. In short, it's too expensive.
This is based on health care cost increases for the current system in recent years.
Setting aside the debate on whether or not the meteoric rise would remain true, especially with a public health care option, how is it any less expensive to keep the current system? People are paying these costs one way or another, and will continue to do so. If the government cannot afford to pay for it in the coming years, how can we expect you or I to under a private system?
http://www.alvinfrewer.com/article.php?story=20090721171748362