How many soda refills would you have to get in order to “get your money’s worth”?
I’m going to let you in on a little secret… on an idle afternoon in a previous job which involved serving drinks from a soda fountain, I decided to put the ‘ice takes up valuable drink space’ myth to the test, taking two medium cups (one with ice), filling both with an equal amount of beverage, and comparing the results. I’m sorry to report that with a cup of that size, the difference is negligable — other than the one with ice being colder, of course. (I should point out for the sake of transparency that the ice almost never filled more than a third of the cup; any more than that would just be silly, now.)