No A big waste of time. Anyone who knows anything about bit coins knows they are unstable. One could be worth 17 dollars right now then be worth pennies in a blink of the eye. So everyone would buy them when value is low which would be a lot of lost revenue for the Cows. Bit coins would destroy the economy of all HCS games. I would love for there to be other methods for payments but this is not the answer.
Edit: at the time of this post 1bit coin= 803 US dollars.