Even if the efforts of Coursera, Kahn Academy, etc "fail" and the incumbent universities are unscathed and continue raising prices, I would still consider them

Even if the efforts of Coursera, Kahn Academy, etc "fail" and the incumbent universities are unscathed and continue raising prices, I would still consider them a huge success for as long as they are able to continue operations. School credentials aside, the education itself is very valuable. While education may not be the thing people most want out of school, it's definitely true that these companies are building something that people want... something I want, at least.