Depends where you live. Also (as you state) it depends on your spending habits. $100K in Fargo is a lot different than $100K in Manhattan.
If the Millionaire Next Store is correct, you're likely to spend more if you live in a nice neighborhood (keeping up with the Joneses).
I notice this myself. A coworker who lives in very nice neighborhood has a BMW. I drive a 14 yead old vehicle and live in a "down scale" neighborhood. So our roughly equivalent salary is going to seem much different to him (money is tight) vs me (lots of disposable income).
If the Millionaire Next Store is correct, you're likely to spend more if you live in a nice neighborhood (keeping up with the Joneses).
I notice this myself. A coworker who lives in very nice neighborhood has a BMW. I drive a 14 yead old vehicle and live in a "down scale" neighborhood. So our roughly equivalent salary is going to seem much different to him (money is tight) vs me (lots of disposable income).