If $1000 can get you just two pieces of graphics cards in the bull season then there's a possibility that $1000 can get you four graphics card in bear market so I believe that this will be increase your reward, what OP did makes sense especially if they have free electricity or solar energy
I know, it makes sense for people with dirty cheap electricity, and in this case, if you have solar or free, better to buy even with high prices, because you'll profit
But imagine the scenario where you can buy 4 cards for 1000 USD like you said, bear market, ETH value of less than 500 USD and hashrate still growing, person paying more than .10cents USD for electricity
How can turn this into profits?
The feeling of a bear market is different, people always say they will go all in if BTC reach 20k again, if ETH costs less than 500, or will buy tons of hardware, but when time comes it's hard to make a decision and buy