It is absolutely impossible to transact anything without an exchanger because if you have money but no place to store the money and no system to transact the money then you must get help from a third party or something to figure out how to transact it because you have  You can turn dollars into money and turn your money into tokens or dollars from the exchange because it is both the main sender and receiver of your economy.  Politics depends on your exchange, share market on stock market, and stock market depends on your money and your product, so you must have an exchange, it is very expensive and usable.  So this exchanger has no comparison.