According to BitPay blog:
According to my chart, the current minings cost is about $100 per bitcoin. It's just an electricity cost.
And there are 3600 bitcoins generating every day.
So capacity to work for our crypto-currency costs $360,000 dollars every day, or $10,800,000 per month.
And we have just $6,400,000 of real operations per month.
Is that all a big ponzi-investment game or have I missed something?