With so much activity on YC last week regarding FaceBook - it should at least be mentioned that one good reason FB is garnering a $15 billion valuation is they

With so much activity on YC last week regarding FaceBook - it should at least be mentioned that one good reason FB is garnering a $15 billion valuation is they had the confidence/balls to turn down the early offers. Microsoft noticed and placed their bet accordingly. If you turn down one billion and keep growing, then you get a much higher valuation the next time around.