I'm very new to this game, so excuse my ignorance.
Say I purchase 312GH/s (3 rigs * 104GH/s) for around 13,500 USD. (sounds a reasonable price?)
According to what I know, 1800W consumption sounds about right for these rigs.
Obviously I join a pool before beginning to mine.
If I plug in the data in here:
http://www.bitcoinx.com/profit/ with a time frame of 3 months, which I realize is a bit simplistic, but I get about 8390 USD net profits.
I realize difficulty may spike due to next gen ASICs and the fact that I would get the rigs only in Jan-Feb 2014, but what is the missing factor here that would convert profits of 8390 USD to some kind of a negative number?
What I am missing here?
90% of the posts here mention mining as no longer profitable. I'm wondering whether I'm missing something, or this is just a strategy?
Please help!
