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TheGrinder | 5 months ago (raw) | root | parent | reply | flag +1 
 The electricity was priced at ZERO, else there is no ROI for that machine.
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bitbybit | 5 months ago (raw) | root | parent | reply | flag +1 
 In my mind anything that generates sats is positive ROI.
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TheGrinder | 5 months ago (raw) | root | parent | reply | flag +1 
 you're better off buying sats right now for that €225. 81 sats/day if you can run it for free wont make you happy.
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bitbybit | 5 months ago (raw) | root | parent | reply | flag 
 I'd agree.  So somewhere in that equation something is mispriced.  S9s basically cost 0$.  They are negative after power.  I think if we have a free market (btc is not a free market) anything that generated sats would be +ROI.
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TheGrinder | 5 months ago (raw) | root | parent | reply | flag 
 I'd say the hardware is mispriced. The calculation is sound.
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TheGrinder | 5 months ago (raw) | root | parent | reply | flag +1 
 but you can price it in sats. ~0.00000081 BTC/Day again assuming that difficulty does not increase in the next 13 years