I just wanted to point out something that I haven't really seen talked about but due to the insane profitability of CNC today which is 1000% over what you would get mining bitcoin, the difficulty is set to go up a huge amount at the next retargeting. According to
http://cnc.strament.com/index.php, it will go from 8 to 82 which at the current exchange rate would drop the profitability to 31% meaning all the miners will abandon ship. Then it will take a very long time to get to the next retargeting effectively killing the coin unless the exchange rate jumps up enough to keep people mining