Quote from: iammagicmike on July 10, 2013, 11:30:07 AM

Quote from: PuertoLibre on July 10, 2013, 07:44:28 AM

Quote from: madmax_ger on July 10, 2013, 07:18:04 AM

just my 2mBTC of calculation...

http://btcinvest.net/bitcoin-mining-profit-calculator.php?diff=21335329.113983&dcosts=1400&diff_mincrease=40&blpbtc=25&dhsmhs=10000&btcusd_mincrease=10&btcusd=74.60&dpowcon=30&dleadtime=2&pcost=0.25&calcweeks=52&action=calc

Please fix power consumption and diff increasements on your own.
40% / month are more than likely.

compare btc buy-in and mining buy-in results in USD as well as in BTC.

disclaimer: I am AM shareholder and own some UBE soon.

There is one critical flaw in that calculator.

The difficulty is increased at 30 day intervals. Even if set at 40% that is not reflective of reality.

If you decrease the interval to 14 days and 20% for that period, you'll see the end number change quite drastically.

I know, because I created an excel sheet to do this. I included the ability to change the period. The frequency of the difficulty change makes a dramatic difference in the overall sum of btc collected over the course of a year.

The calculator is (really good) but it doesn't have a realistic frequency for difficulty changes. So the numbers it gives are drastically different than what it should be.

any chance I could look at that spreadsheet?

Take a look for yourself:

http://speedy.sh/DhW2Q/ASICs-are-way-overpriced-1.xlsx