What's the point of having billions of dollars unless you do something with the money? They're just numbers on a piece of paper until you spend them. But what are you going to spend a billion dollars on? There's only so much caviar you can eat and so many mansions you can sleep in and so many Gulfstream jets you can fly around in. The only point of becoming a billionaire is that you have enough money to acquire power - power to effect change, power to get millions of people to listen to you and follow you, power to make a name for yourself that will be remembered for generations. For a narcissist like Trump, which would you rather have? $4.5 billion and just be one of a thousand billionaires or $3.7 billion and be President of the United States? Frankly, I think it makes sense to trade all of your money to become President. Being an ex-President is probably worth a billion dollars in perquisites all by itself. Do you think Bill Clinton pays for anything? He can have anything he wants. His prestige is his currency.