Cointerra announced prices for one of their units.
http://thegenesisblock.com/cointerra-announces-2ths-asic-bitcoin-miner-for-15750/#!prettyPhoto
2 Th.s for $15,750 (~$8 per Gh) with delivery sometime in december.
Um, according to the bitcoin mining dashboard, if you plug in on January 1st, you will NOT get a positive return on your investment. So even their promise to deliver sometime "in december" is not a very good offer.
What if they're delayed on top of that? They promise additional hashpower if they delay. However, a positive return plugging in as early as jan 1 would require 50% additional hashpower. And a delay would make it impossible to plug in that early with the additional hashpower, and it is a fantasy to think they would offer that much compensation for the inconvenience of the delay. Hmm. I applaud cointerra on the technological advances in design, but it doesn't look a like a wise investment for us at those prices.