These look cool and all, and the Prisma seem to be a more efficient miner than the original Tubes.

All that said, I'm with the others on this one, doesn't seem to be any ROI in sight unless these somehow ship this week, not in October.

Either way, well done FC/AM for continuing to tweak and pump out these new designs at decent rates.  The 14 BTC for the 14 TH/s will never return that amount back(difficulty, PSU costs, import tax costs, shipping costs, cabling costs, cooling/electrical costs etc), but at least they're giving miners a good buying option compared to BFL, KNC, BA, AMT, Cointerra etc.