No problem. I bought a Platinum contract in January, costs: 5.2 BTC for 420Ghs, available on Feb 15.

Now do the math:
Month 01 : 1.4 BTC (at most! With a few days to go it's 1.25 actually)
Issue, is of course rising difficulty. In general that difficulty halves revenue every month. Apply that to the remainder on the year contract:
Month 02 : 0.7 BTC
Month 03 : 0.4 BTC
Month 04 : 0.2 BTC
Month 05 : 0.1 BTC
Month 06 : 0.05 BTC
Month 07 : 0.0125 BTC
Month 08 : 0.007 BTC
Month 09 : 0.004 BTC
Month 10 : 0.002 BTC
Month 11 : 0.001 BTC
Month 12 : 0.0005 BTC

Total over 12 months : 2.877 BTC
Cloudhashing charges a whopping 10% fee, makes the total 2.58 BTC.

Lets see, I invested 5.2 BTC, I will make only half that.
Actual revenue: -2.6 BTC !!!!

Cloudhashing has also invented the RRP. That way you can spent your earnings on overexpensive GHs (that they'll charge you 10% for) so in the end you 'll end up even less...

I expect the results to be even worse. So far I've had two days without any payment at all. According to Cloudhashing support that is because there are days when they don't find blocks. 1500THs online and no blocks? Sure...


So... if anyone wants to be talked out of it, do your own math before buying. New Gold contract is 370Ghs for $3999. That's over 6 BTC at the moment! Even more then I paid for 420Ghs! At best bet you'll end up with less then half what you invested. If you need help on the math: one of the very best revenue calculators can be found here: http://www.evolyn.net/bitcoin/mining_calc.php