I've just returned from a visit to Amarillo, TX, where they have 3 shops which sell nothing but iced tea, water and ice! Big vats of tea, in different flavours, sweetened and unsweetened. They sell it by the gallon or half-gallon.
I was there for a week, and drank 2 x 64-ounce cups of plain iced tea every day. I think that's my craving satisfied for a while!