In the face of Obama's new healthcare initiative, which includes provisions to cap the increases in insurance costs, you can read here a nice description of the problems of fixing maximum prices. When the Government caps prices to help people, it is a policy which goes in the category of "really simple, intuitive, well-intentioned, and wrong."
More people need to understand the proper functioning of the free market. This is true of people on "Main Street" as well as those on Wall Street. I think I may be becoming more Libertarian in my old age. :)