That is why the experts are convinced that today it is absolutely not profitable to mine bitcoins at home. Of course, you can buy the modern ASIC, which will be quite productive, but it is unlikely that all expended resources will be recouped by the earned BTC.
So the cloud mining is gaining a popularity. Its essence consists in the following – you do not buy your device, but only rent some of the capacity of existing equipment, which is owned by a large company. In that case you don’t need to pay the electricity bills, nor to consider the cooling system, nor worry about possible failures.
In fact, the cloud mining is a passive income interest on the investment. You invest the money in the rental of the capacity, in the real working hardware, and you get some part of the remuneration corresponding to the amount of the money invested by you.
Therefore, answering the question about the relevance of the mining, it is safe to say that the cryptocurrency producing will continue to be topical until will be generated the new blocks. However, the principle of earning by this, of course, has undergone changes.