BTC value has increased about 20% the last week, why did the price not drop by that percentage in btc?
I calculated over and over again, with kwh @ 0.27€ and diff increase 15%, the S1 will never ever make the btc back you invested if I have to pay monthly the electricity from mined btc.
What did I wrong? Why should someone buy S1, at least in germany it's just stupid?
you are apply wrong mathematical techniques for your calculations as many people do not understand all the variables involved.
BTC roi has no meaning if you purchased the btc with fiat. the fiat price has the meaning.
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Also who cares if you do a btc roi
in this case. I buy today at .419btc use a coupon pay .369 btc.
I buy the btc from an exchange today at 585 usd.
My fiat cost was .369 btc x 585 usd = 215.86 usd.
I setup a dedicated account at btcguild. all btc and nmc goes to it…….
BTC crashes drops to 100 usd. difficulty drops like a mother fucker.
when all is done my machine mines 3 btc and costs me 1btc in power. net of 2btc
so I kicked ass in btc roi I turn .369 btc into 2 btc .
I whaled but wait my fiat was 215.86 usd my fiat now is 200 usd
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think this can't happen it can ..
if btc price drops a lot big time minign will stop and diff will drop.
So do not lock yourself into btc roi. your calculations need to take a lot into account.
1)btc roi
2)fiat roi
3)heating bill reduced if you use a space heater in the winter. you can turn on an s-1 instead.
4)So s-1's can be stored if they do not make any money in the months of August, Sept. then in OCT turned back on.
5)Undervolt/underclock makes extra money
6) rising btc price allows for power to be paid off and sometimes the price rises way faster then difficulty.
7) using an s-1 in a space with 'free' power Or in my case I can use 800 watts and pay for only 200 watts.
So an s-1 cost me only 4 cents a kwatt.