We buy peanut butter at Sam's Club (a warehouse store where you have to have a membership and everything is sold in bulk) and I can barely keep enough in the house. All the kids eat it, sometimes for both breakfast and lunch. And a snack. On toast, on crackers, in a sandwich, sometimes just a spoonful.
I don't really eat it, but I do love peanut butter based desserts. My peanut butter pie is amazing.