Quote from: mberg2007 on November 11, 2013, 09:15:05 PM

Quote from: Keyser Soze on November 11, 2013, 07:19:41 PM

You should not include an exchange rate increase in your profit calculations. If you pay 0.04BTC (or the equivalent in another currency) for a device that will only produce 0.01BTC (after operating costs) in its lifetime, then it is not profitable. If you want to bet on bitcoins increasing in value over other currencies, then just buy bitcoins. This assumes your only motivation is profit.

I was going to write a bunch of clever calculations but you are right. It is actually more sensible to just exchange the $15 to 0.03 btc.

But if you really wanted to make a profit with a mining device of some kind, how would you be able to gauge the performance? Like "price per ghash per watt < x"? Did anyone make an online calculator for that?

-Michael

Everyone ignore everything else, and that's the answer right there. You could invest $15 to get 0.01 btc, or you could just buy 0.03 btc with that same money, and have those bitcoins.

Here is a fact that every miner needs to contemplate. THE DIFFICULTY IS NOT GOING TO GET EASIER

The end.