nice and way to expensive
500 plus psu and shipping = 750 that u will never return let alone earn
in 4th month u got army of new 8xx and dif will sky rocket
summer s10 or earlier = double that
so u will have expensive power eater
did u ever wonder why they selling "profitable" miners out of there's mining fabs ??
They are selling them because they are already ROI and got a pretty good deal on Avalon 8 and also don't have more electricity capacity at their location.
Way to expensive ? For home mining in germany maybe... but still we sell alot to countries with cheap electricity like serbia or sweden.
The difference between 8xx and 7xx is not that high, but if you look at canaan's pricing, the used 741's are quite cheap though. For sure depends on your electricity bill.