I bought one case of bottled water...give it away to friends if they're leaving here on a long drive. FWIW, Oregon recently passed a deposit law on the plastic bottles. May help reduce litter. The bottles are also recyclable at our local transfer station...a big bin that plastics go into.
As far as them being tap water? The entire story wasn't told. Tap water yes, but run through extra filtering processes, including reverse osmosis...so it does taste better than chlorinated tap water. Not that tap water is bad for you.
All that being said? My home drinking water tastes quite good. So good, we usually carry a bottle of it when out & about for any length of time. Non chlorinated, it comes from a secret well hidden deep in Oregon's Willamette Valley.