by the time you get your machine, their bitcoins double in price, they make profits.
You can only say this for fact in hindsight. at 1000/btc it's hard to imagine it doubling by March.
I don't like long term predictions for bitcoin but do you believe that anyone was thinking that bitcoin will go from 200$ to 1200$ in one month? Absolutely noone. Even the more bullish among the bulls couldn't have thought of such a rise.