0.47BTC H-Card, time to buy

This...the price drop is appreciated. Cheaper (by about a third) than AntMiner, and more power-efficient.
Please explain how you arrive at this conclusion. Bitfury 200GH set is $3200 = 3.9
BTC at current coinbase $822/btc
Antminer 180GH is 3
BTCBoth 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.
New price is actually 2.65
When I first read this, I thought you were saying that the price of a 200 GH Bitfury rig was 2.65 BTC and I was ready to order a couple. Upon further review, you were talking about the Antminer, and they are currently out of stock.
I really want to order a 400 GH Bitfury rig, but just can't make the numbers work. At over 8 BTC for 400 GH, I keep coming up with a ROI time of infinity...

Do BitFury rigs overclock well? Is it reasonable to expect 500 GH? Are they reliable? I read a good number of horror stories on this thread from folks who had a lot of trouble getting all 16 boards to work correctly due to board wobble and poor connections. Does the SD card still get corrupted when the machine is powered off?