so if I look one year back dificulty increase by arround 60% ... ? so if same thing happens till next year my daily earnings will drop from 20$ to 8$ if btc price not change ... can I calculate something like that ? will be this calculation close ?
Correct. How ever i do not believe there is not enough new hardware around to increase another 60%.The magic words here are "if btc price not change".
And that is impossible to say. Maybe we see 600+ in the next Year.
Then we reach ROI of course much faster.
Or the price collapses. Or Difficulty increases 200%, or or or.
To be honest, I like GM and indeed have smaller amounts invested, but I would not invest $ 5,000.
I would rather recommend Hashnest. Since you can resell your shares.
Or get the hardware if it is no longer worthwhile.
Genesis is more for the small coins that you have left anyway, in my opinion.
No Offense GM
There is a reason GM not allow this. Hashnest can be shutdown be corse of that. It`s not if, but when.