What's the point of an expensive MBA?

Bill Gates, the late Steve Jobs and Mark Zuckerberg; apart from making billions they all have one thing in common - they are all college dropouts.

So why bother with all the time and the ever-increasing cost of a business degree, if you can make it to the top of the corporate world without one?

In the last in our Education series, Investing in the Next Generation, Michelle Fleury now reports from New York.