I just finished reading "Get a Life" and was reminded why I enjoy "Your Money or Your Life" so much. It is because nowhere in the book does it tell anyone what the "enough" point it. Those who have read either book would recognize the concept of enough as being the point on the graph where money spent gives maximal "returns" in terms of enjoyment, fulfillment etc.
So the underlying philosophy of money and energy thus applies to everyone and one can scale it however you wish--brilliant! No one is asking you to knit underwear out of dryer lint nor are you blasted for wanting foreign travel as part of your life. As long as you realize the true cost of what your spending entails, you can have everything you wish.