Back in the '90s my parents owned a grocery store. We had a customer who was a multi-millionaire when that actually meant something. This guy would use all the coupons and squabble over every penny. My dad and he became friends and hung out a few times. My dad asked him why he pinches every penny when he has so much. The guy told him, "D, I didn't get to be rich by spending all my money." The only goal is more. There is no level of satisfied. It is just a continuous quest for more.