Plus there's mining hardware depreciation and obsolescence. Turning off and limiting your miners to mere eight hours a day loses its opportunity to breakeven on the hardware cost which must be done as quickly as possible. In this industry, cheap electricity is the biggest requirement to succeed. No access to cheap electricity means losing against the other more efficient miners who do have access. It would absolutely be more profitable to buy the DIP, and HODL with the capital and relax by being a passive investor.