Having working on an app that we just throwed more hardware at, to the point where the azure subscription cost could be lowered by my whole anually salary, by 3

Having working on an app that we just throwed more hardware at, to the point where the azure subscription cost could be lowered by my whole anually salary, by 3 months work of optimization. I believe performance does matter. We where a 4 person team and could have added a fifth if we had a cheaper design.