It doesn’t make sense to do that, hardware deprecates in 5years (it used to be 3) and is currently very expensive. So by using this approach you double the average cost of hardware per unit of compute completed.
If there wasn’t such a hardware squeeze and electricity was a higher percentage of the cost, yes, it would have made sense.
If there wasn’t such a hardware squeeze and electricity was a higher percentage of the cost, yes, it would have made sense.