They are using 55nm asics.
Not going to turn a profit.
At least not at current BTC/USD prices.
I might be wrong. But i would've gone with newer 28 nm asics.
Why would they need to go with a 28nm process, when the BitFury chips are MUCH cheaper to process (giving you higher GHs/USD), and are also amazingly power efficient (even beating out KNC's 28nm).
With a $5million purchase, you can bet they weighed ALL their options before they bought anything.