Tada....given that I've punted that $10 price I think I should explain.
Firstly I'm loaded, and letting go of 2 or 3 thousand shares at $10, (assuming we get there of course) is merely a thought with regards to freeing up a little capital. Shares are nice, but the airlines won't take them as payment :-)
Now...in terms of some magic fundamental formula for determining fair value....personally I think that is a fool's game, because shares don't trade on fundamentals, they trade on emotion, psychology, fear and greed. Fundamentals play a role....data points and such can impact sentiment, but there are many other influncers of the psychology of the market than just hard data.