I have to agree. assuming the bitfury cards can be pushed to a stable 35GHash each, you need 5-6 cards (or $5000, $4500 if buying more than 10) to have the same hashrate as a single 4.25BTC antminer (which comes with heatsinks, fan, and a stable caseframe) - and does not require the same card-by-card optimization process.

of course, the bitfury cards draw half as much power, but at this point 1w/GH difference is negligible

that said, would anyone be interetsed in splitting on a purchase of 5 card each? I would reship from toronto, and be happy to use escrow