The Pre-War economy enshrined the idea of getting the next new hot thing as quickly as possible. If your phone was a year old you needed something better. People bought new cars every two or three years. Toys that broke just needed replacing. There was no need to fix anything. We were a throwaway society, obsessed with getting newer and better things. It was a real shock to a lot of people when The War stopped that trend. We had to keep stuff designed to wear out in three years for twenty years and more. It fundamentally changed how people looked at buying stuff. Maybe war can be good for something after all.