Please explain how you arrive at this conclusion.  Bitfury 200GH set is $3200 = 3.9BTC at current coinbase $822/btc

Antminer 180GH is 3BTC

Both shipping now.  How is bitfury 1/3 cheaper than antminer? 

Bitfury is more power efficient - that is understood, but i dont understand why you think bitfury is 1/3 cheaper.