I did the same for years but with GPU miners (not for BTC, but ETH and other "shitcoins" 😁).
The formula is simple:
P(BTC) >= C(e)+C(h)
Where "P" is the price funct, "C" is the cost funct, "e" = electricity, "h" = heating, BTC is trivial
Same :-) But now the electricity cost is high, and my miners are too old
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Agree. Electricity has gone up a lot the past year. I haven't factored in the new costs yet. I probably now break even or lose a few dollars. But that's probably still worth it.
Maybe you are right. This is like a future contract. I'm still hesitating
