The price comes from the number of Validators offering their service. If there are many then the price goes down and vice versa. This is just basic economics.

The price comes from the number of Validators offering their service. If there are many then the price goes down and vice versa. This is just basic economics. The current offering of VISA, Mastercard, etc. is somewhat limited and there is a barrier to entry. Therefore, artificially high costs can be maintained.