My mother told me that back when I was born infants were fed a "formula" consisting of evaporated milk, Karo syrup, and one other thing that I can't remember.
I have bought evaporated milk hundreds of times. People like it in their coffee, it makes the best hot cocoa using Hershey's recipe, and I keep a can in the pantry for when I need some milk for a recipe. I also keep powdered milk for that same purpose but it's less good that evaporated. I don't buy cartons of milk regularly but 1/2 evaporated milk and 1/2 water mixes together is perfect for cooking when it calls for "milk." You gotta use evaporated milk for mac and cheese.
my2cents 