The article says (among other things) that electricity is cheaper in China than in the US, setting up a farm costs 5 to 10 times less in China, and the US was t

The article says (among other things) that electricity is cheaper in China than in the US, setting up a farm costs 5 to 10 times less in China, and the US was the second biggest miner. The last fact suggests a lot of people in the US are able to make money at it -- so those Chinese miners must have been making a killing.