CryptoCrazy--it looks profitable because some of your inputs are inaccurate.
First, you put in the current difficulty as 390 million. That is the current difficulty, but only for another couple of days. By the time someone actually receives the Saturn, the difficulty will be something like 520 million. Put that number into your calculator, and you're immediately in the red.
Also, you underestimated the difficulty increase per month. You input 119% when the actual value is at least 150%.
Difficulty on August 24: 65,750,060
Difficulty on September 25: 148,819,200
% increase August to September: 126%
Difficulty on October 26: 390,928,788
% increase September to October: 163%
But if you think I'm wrong, why don't you buy this Saturn? It should be free money for you.
I agree with what you're saying. I just wanted to make the point that this calculator was more accurate than bitcoinx. For the record, I'm not interested in buying a KNC or any other miner for that matter. I think you're better off buying bitcoins with your money and holding on to them at this point.
Let the price of the bitcoin do all the work!