$BTC Bitmain's latest S23 Hyd 580T
Four years of electricity costs amount to $11005 + machine costs $14790
, considering the increasing mining difficulty.
Ideally, each unit can mine 0.21 BTC in 4 years.
But the electricity and machine costs over 4 years can now directly buy 0.3968 BTC.
Therefore, buying an S23 is equivalent to purchasing a bullish option worth 110,000.
Moreover, the static payback period for the S23 exceeds 44 months, making the time risk exposure too long.