Do they ever mention what the hashrate will be? Or, just the power consumption per Th/s as 230 watts?
I may be stretching, but a 2.4+ Th/s machine for <$700 SHIPPED would be amazing.
The 230watt / th is THE hard figure they've mentioned, though the fine print on that specified chips running at .66 volts.
Presuming they stick with string design, that DOES specify 18 chips per string.
It would be VERY VERY iffy for them to try to cram 54 hash chips on one hash board.
Therefore, the general consensus has been 2 hash boards, 2 strings per chip, appx. 2.3 TH at appx 550 watts ballpark for an S7, at around 4 BTC PLUS shipping (or around $930ish at current BTC pricing). Call it $1000 or so shipped.
That appears to be a fair assessment. With those number, with no difficulty increase, ROI is ~300 days. That is going to be tight with the halving in less than a year and possible difficulty increases. Bitcoin price again is a huge unknown.