Quote from: ciuciu on July 05, 2013, 06:25:38 PM

Now 165 BTC.

Per Day ฿1.41 at 60 GH

The problem is in a few months its predicted, though not guaranteed to skyrocket about 30 times or so.
All the Asics of BFL, Avalon, etc yet to be all sent out.

Once this occurs, mining will become not as profitable.

In ~3-5 months time we can see 1.41/30= 0.047 BTC/Daily.

And assuming if it remained 1.41 that would take at alone 117 Days.
1.41*117=165 BTC.

But we won't see that happening. Doubling of difficulty is expected within a month.

1.41*30, 0.7*30, 0.3*30, 0.15 * 30, 0.07*30,0.05*30, etc.=42.3+21+9+4.5+2.1+1.5=80.4 BTC

That's within 6 Months. Assuming it stays 0.05*30 Forever, though it won't as KNCminers are coming out.

To generate the other 80 BTC, it take you 53.3 Months.

So it would take nearly 5 years to get back on your investment, assuming difficulty doesn't increase.
But in reality it would drop and drop, 28NM asics would come out, rising even higher.
Eventually it would drop another halving several more times. Taking over 40-50 years to pay back
if ever.

Why would anyone want to pay 165 BTC? I don't get it.

From risk, to earning, at most I'd personally value it at ~85-95 at most