My opinion is that a virtual central bank is mandatory in this case, in order to pump virtual coins, when needed, and keep it away from speculations. For instance, if I have 5 millions of dollars, I buy ethereum and bitcoin, the price goes crazy high, as the cryptocurrency is limited and sell it in a week, getting the maximum profit of it. But, this way, the market gets high and crashes after a short while.
RE: Cryptocurrency payments for travel agencies? When?