This is the basic principle of how Bitcoins rate is defined. Price of gold is determined by the same principle: Mining cost. The prime cost of extracting gold from earth, was transformed, in Bitcoins case, in a minimum price of obtaining new Bitcoins by means of calculating certain equations. Demand on the market. Awareness of Bitcoin, interest in it, trust of actual or potential crypto holders, and a lot more factors define the real price among the people who are willing to buy and sell Bitcoin.