I would disagree. I don't really see what people are spending money on? Everyone I know working in technology have pretty much bought everything they ever wanted in terms of electronics, clothes, equipment and vacations long ago. Most people could afford a sports car by 30 if they wanted to. Unless you have very expensive taste these things really aren't that expensive. What is expensive is space (housing, vacation home, workshop), time (education, sabbaticals, hobbies) and fluffy things (security, love, prosperity). Sure, housing might only be some percentage, but it is that percentage for the a large part of your life.