To produce it, they have to start with fresh milk, then incur additional processing costs.
You don’t have to tell me! I was born in, and other than my time in the Army, will ALWAYS live in Wisconsin. We. Know. Milk.
...and butter, cheese, yogurt, etc. :)
BUT - powdered milk is good to have on hand if you’re stuck in a blizzard, or if TSHTF in a Big Way.
It’s a ‘Prepper’ staple.