Mountain Dew here doesn't even have caffeine in it. So we miss out on such wonders as BAJA BLAST flavours, and don't even get the caffeine hit in compensation.
Also, I found an IGA in Canberra that sold all manner of American stuff, with Pop Tarts and Reeses Cups, along with Cherry Coke and Dr Pepper right next to the fruit and veg. They also sold Milk Duds and Hershey's chocolate and peanut butter M&Ms and other stuff I can't remember. It was a strange little supermarket. However, the one time I went in for the sole purpose of buying Pop Tarts, they didn't have any there. I (sadly) almost cried.