Water went on sale and we bought it. Remember the time when we didn't carry water in labelled plastic bottles?
I nearly always have a bottle of water with me, but at least I can say that I only bought the bottle once and have refilled it from the tap numerous times. The bottled water industry has already passed milk and beer in sales (in the US at least), the empty bottles are fodder for land fill and cost a lot (environmentally) in transport and manufacture terms. And where does the water come from? Who owns the water?
At our last Eco Book Group we discussed Bottlemania: how water went on sale and why we bought it by Elizabeth Royte. Most of Royte's examples are US based, but the same principles apply world wide. The success of the commercialisation of the water industry when people already had good water to drink is a phenomenon that she tries to explore. She discovers that not all tap water is perfect. And, that bottled water does have its place but it's often no better than tap water.
Why would you pay some multinational company a lot more for a litre of the stuff?