Metcalfe (2014) found that the square of the number of nodes is equal to the value of the network, and the square of the growth rate of the number of users connected to the network is directly proportional to the value of the network. If a technology has a certain strength of user scale, then its value will grow rapidly. The speed of a technology to reach a certain strength of user scale depends on the cost of Internet users entering the network. The lower the cost of entering the network, the faster the speed of reaching the necessary user scale.<br>