One bitcoin can be worth between 100 and 500 dollars – it depends on what equipment you are using and what rate is acting to a specific day. In 2011, it was possible to recoup the cost of a top gaming video card for a couple of weeks of coins producing, however, but the complexity of calculation is increased and it is very unprofitable to mine bitcoins solo.
This has led to the emergence of pools that are unions of miners, which include several tens, hundreds, and sometimes thousands of players. If the operation with block were crowned with success as described above, the players are given their own part of the funds equal to their contribution to the work.
The system sees a pool as the only participant that is producing hundreds of gigahashes per second. But in reality it is a central server, which distributes tasks to pool participants. Unlike the bitcoin mining in solo-mode, the collective production brings money faster, but in small portions.
Thus, among the advantages of the mining in solo mode is the ability to get all earned funds alone without need to share with anyone. But the downside of the single work is a need to purchase the expensive equipment, its configuration and arrangement of the cooling system, as well as a too long waiting for a calculation of one hash.