I don't think you would get great values in those public speaking and business classes. I personally agree that people who want to do those things better just start doing it (although, the article tells a different story about the cook). Introductory science courses (which I would otherwise not being able to learn on my own) were certainly worth the price I paid for. I was in a public university and those 3-credit hours courses used to cost me about 800 USD per. There are not many other things that I could better spend my money - I think those are of great value (Although the MOOCs have shown that the price point for really good basic education could be set much lower, but with some trade-offs.)