I believe this stock went as low at $2/share several years ago, before it rocketed up to $50. I can understand to some extent some panic during the financial crisis....but now, all the fundamentals look great (i.e. airlines profitable with low fuel costs, tons of people flying, still a shortage of planes, especially like AER has). I think there is a great buying opportunity here, to start averaging in. The only threats I can see are if people are expecting a recession or if the tax laws change.