Still even if its more power efficient, it still doesn't justify 55 BTC+.
Id still prefer the extra Hash-rate of antminers.
I may understand an offer of 40 or so BTC, but not 55+.
The market value is roughly about.
11.16/8.5=1.313
Taking 55 BTC/1.313= 41.89 BTC.
Now since antminers are more power efficient and can over clock to 200GH.
Your true market value is around ~35 BTC or so.
No one will offer much more then that.
As someone else already pointed out, Bitfury's chip is more efficient than Antminer's. On top of that, machines are not overclocked nor optimized but still output 8~8.5 TH/s, there is room for improvement.