It's become a matter of conventional wisdom that a high school diploma won't cut it anymore -- especially in the high-tech job market of the 21st century. But college isn't cheap: The cost of attending a public institution has doubled in the last fifteen years, and tuitions at PRIVATE colleges have tripled. As Minnesota Public Radio's Martin Kaste reports, there may be an alternative on the way for undergrads who don't have the money -- or the time -- for life on campus.