Not only that, but, from the article: "Theres many more and more sophisticated giant operations around the world, including this one in Washington, USA, which generates about $US8 million a month."
The one in Washington state is sick. Now this is what a profitable mine looks like.
Probably not for very long. What is essentially an arms race in the mining world is causing the difficulty to increase at double digit percentages every month because of increasing efficiencies for miners. As a result, even the most efficient "corporate level" miners will have a useful lifespan of only a few months
