I've been in Argentina and Chile the past few months. Not being able to get a Diet Coke large enough to wash a small child in and a mountain of ice has been quite disappointing. I was in a Tony Roma's yesterday in Santiago, Chile. They gave me a glass the size of a small, highball, cocktail glass. I could have finished it in one gulp. No refill, as usual. I ran into a guy in the restaurant industry that said it costs 1 cent to produce a fountain soda and is the most profitable item on the menu. So why has the rest of the world not followed our lead and embraced the free refill?