As someone else said, recovering alcoholics, but also they market towards sustainability. Infinitely recyclable aluminum instead of single use bottles and all that. I’m still just gonna drink from the tap most of the time, but I’ll pick one up on a road trip or if I’m going on a picnic or something

There’s significantly less plastic in them, they only have to have a very thin coating to prevent the metal from oxidizing, vs having to be structurally supportive and retain its own shape. On top of that, aluminum is infinitely recyclable