There is no profit in that case, profit is only after the gpu was paid off which if we think about 99% of gpus were never paid off due to the eth 15 times crash, what was the point of a 300 days roi if eth crashed 15 times, the 300 days became 300 x 15 = 4500 days = 12 years and if we really think about as every year that  gpu has a depreciation, 99% of gpus were never paid off, will never be paid off and the losers are the miners, the only winners is the people who buy eth cheap like this from miners who has no choice but to sell at this price to pay for their debs or other things like loan and who knows they thought easy  money would last forever, their easy money methodology back fired, game over for them and 99% of people who bet on mining.

Their only salvation is to hold all the eth they mined before the crash and never sell until eth price returns to $1000 plus.