Some places have much better water than others. The tap water at my house is actually pretty good, but in a lot of places I have to force it down and don't drink nearly as much as I should if tap water/drinking fountains are all I have available. I don't personally use beetus to make bad tasting water more drinkable (ice if it's available, waiting until I'm too thirsty to avoid drinking if it's not), but I can see why some people would.