I used to think this and then it stopped expanding. I have very low needs. Just enough for healthy food and some tennis equipment and I'm happy. It got to the point where I was earning much more than I could justify spending so I decided to change careers for something that optimised for lifestyle over money and now I'm much happier. People think that more money = more happiness, but I'd say that you need more money when you're unhappy. Money buys comfort but not happiness. Ironically when you're happier you need less money.