And Pangolinminer sells used 11T M3s for $50...
That price for that hashrate is truly astounding, irrespective of what its efficiency is. Do you know when I got one of the first 60Gh Avalon miners, the official price was 75BTC?
Its incredibly cheap... MicroBT has the advantage, the M10s are nearly the most efficient SHA256 miners and thats at 16nm, if they release a 7nm...