Quote from: chrono030 on February 13, 2014, 06:46:03 PM

Quote from: 1Neptune on February 13, 2014, 06:35:23 PM

Quote from: DPoS on February 13, 2014, 06:28:09 PM

Quote from: 1Neptune on February 13, 2014, 06:23:32 PM

keeping my preorders....

..... I want to make money

does not compute unless you used someone elses money for those preorders

At today's speculation by some about the future rise in the difficulty, no it doesn't. Take the difficulty rise in the past, the present rate, and calculate the percent increases and project that over successive two week periods to the end of the year, then take into account how many TH/s the miners will do and yes, it's still projected to be profitable to the end of the year.

I don't work on emotional speculation. I work with hard numbers. Those hard numbers tell me it's not time to dump the mining gear, in hand and working or preorders. That may change over the next several increases in the difficulty but as of today it hasn't.

Also it's not other people's money, it's mine.

You should also be considering the amount of BTC you could buy with the funds that you have locked up in pre-orders. if that exceeds the amount that you will gain from having the mining, then it is obviously a better idea to get a refund & buy BTC.

I've considered that but with the day to day fluctuations in btc price one can't get a reliable determination day to day. One BTC is $637.16 as I write this, a couple of weeks ago it fluctuated between $800 and $900. A few weeks before that it was $900 to over $1000. Some poor trader actually sold some BTC on btc-e February 10th for $102, and that caused down spikes on the other exchanges, for example $530 on bitstamp. A method used to predict changes in the price of stocks on the NYSE and giving buy or sell signals, called exponential smoothing, should be used when including the BTC price in profitability calculations and you of course have to include the BTC price.