The math in mining changes every day.
With an Ethereum price of $ 1,000, you have a profit of 60 cents, but you can sell coins when the price approaches ATH.And your profit will be 5 times more.
The math absolutely does change, but my point is that since I thought video card prices were too high in proportion to the fiat profit (profit fell by half, but GPU prices only fell by 5-10%), I decided to sell half my video cards while I could still get a decent price. The fiat profit matters because it influences GPU prices, even if I don't care about it myself.
I will sit on the cash, then when GPUs are cheaper, use the cash to buy more cards than I sold.My priority is mining as much coin as possible during this crypto winter, therefore the # of cards does matter.
If I buy video cards, it's for at least 3 years. Video cards can be called a reserve asset that brings a small profit. It is better to trade mined coins if you have experience and desire.
If you have one or 2 mining farms at home, and you decide to sell them while profitable, then this may be a good solution.
But if you buy a private house with a good mining rate, equip it and sell video cards, then your investment will not work. In my country, such a house in the village can be bought for 10-15 thousand dollars with a tariff of 0.035 dollars per kilowatt.