Re: Bitmain's Released Antminer S9, World's First 16nm Miner Ready to Order
I base it off the real world numbers of already owning them and already earning enough from them to spend 11.6BTC for 10 more (on top of the $0.10 p/kWh I pay for electric). 
Not only a computer and genie, but also a show off. It is probably safe to say that you will only see a fraction of those 11.6BTC again, especially with $0.10 p/kWh electricity (though not entirely clear which currency that is).