Recently I began thinking about why the use of tokens for money is so popular. In casinos, I think that it is well justified, but there are some cases when those arguments are not useful. For example, why would an amusement park make you buy tickets that say exactly how much is it worth (for example, buying a ticket for 5 dollars at the cost of....5 dollars). You know how much money you are spending, so the link between value and tokens is not broken. What positive effects does that measure have in the amusement park economy? Why?