Look. All current coin transactions are handled by the miners. If this were not profitable, then all the mining capacities would be turned off. And if someone is engaged in mining, it means that it is profitable.
Earlier, equipment for mining paid off for less than a year, now this time has increased.
Anyway, I can not say that investing money in mining is very effective. The only plus that can be is to work for the future and when the market starts to grow you will get much more profit.
Do you still hope that the market will start to grow?
I think the current situation will last for a long time. Although if you now purchase the mining equipment, when the prices for it fell, you can get a profit in the future.
I'm just confident that the market will definitely grow. And it's not because I'm an optimist, but because those who push the market down to buy at the bottom - will necessarily start pushing it up to earn.