Bitmain had another batch of S9s this morning. Sold out in 6 minutes at a price of $2320. Although they seem impossible to get, it's a very reasonable price compared to if these were at $4k. At 10 cents per Kw/h you're looking at ~4 month ROI on the S9, the 821 would be 12 months .


I get paying a premium on an Avalon over and Antminer, but the premium to me is paying the same amount of money for both, and getting less TH/s out of the Avalons.