I've got ~75 single CPUs doing about ~16KH on Cryptonight... each one cost me $20-35 bucks (Xeon X5660/X5670). So average $27.50 each = $2062.50 cost for around $700 a month even at todays low profit (they have more than paid for themselves during the peak times in my case).
Also quite a few used quad-CPU servers crunching away...
Now... buying NEW CPUs with the express purpose of mining is NOT a good idea... but used gear can do nicely.
This tactics works on GPU mining too, soon we can buy old GPU´s for $20-35 again, they will still earn something. Not much but something.
Our highest priority now is getting withdrawals back online. We expect to be able to reopen withdrawals no later than 01:00 AM UTC Monday (5:00 PM PT Sunday).
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