Look at it another way: the incremental unit cost of flavours, colours and carbonation probably isn't much. So really, every bottled beverage is primarily drive

Look at it another way: the incremental unit cost of flavours, colours and carbonation probably isn't much. So really, every bottled beverage is primarily driven by logistics, marketing and consumer willingness. I doubt water is any more profitable than cola. The difference with plain water is it's pretty much a true commodity product; assuming free-market economics, if it really were feasible to lower prices it would have already happened.