I wouldn't fret about it. Investors know that investing in tech startups are as high risk as they come (b/c they have some of the highest rewards - risk vs. reward). They know there is a chance that the investment will hit the bottom, so don't worry about them. Start looking for some jobs. I'm sure from your experience over a few years you can provide some great value to other organizations who would take you in a second. Keep your head up.
I would actually like to see a comparison too. However, I have personally not taken courses at each (yet!), and having done so would be the best way to provide such feedback. Hopefully someone out there can share.
Although you may be correct, it seems too early to tell whether this is the case. There's bound to be some issues early on, as they are still so new. They will improve. I believe having that interaction with a professor is so valuable, and something that can't be easily replicated with the way MOOCs scale to the thousands of attendees.
I don't think they got it wrong, but rather the market is reacting to the nature of the business. The Groupon's of the World are too labour intensive, and will keep the op costs very high. You can't keep posting quality deals without someone having that conversation with the vendor. As long as that's the model, the costs are going to be too high, and far from profitable. The market is properly reacting to their business cycle. Living Social the same.