Billionaires have enough money that they probably don't have to worry about money. Millionaires are mostly pretty ordinary people, except they own a house and h

Billionaires have enough money that they probably don't have to worry about money. Millionaires are mostly pretty ordinary people, except they own a house and have a job and a pension fund. Many of them are "asset rich, cash poor": they have to watch what they spend. The average house price in London UK is $771,360, so lot of people own houses worth more than $1 million. The median house price in New York is $548,500, while "The median price paid in June for a new or existing single-family home or condo in San Francisco hit $1 million for the first time, according to a report released Wednesday by DataQuick." http://www.sfgate.com/business/networth/article/1-million-city-S-F-median-home-price-hits-7-5626591.php http://www.sfgate.com/business/networth/article/1-million-ci... You can become a millionaire by working hard at something and investing wisely, and a multi-millionaire if you're exceptionally good at your trade (or lucky). Becoming a billionaire looks a lot trickier, but I suspect you're less likely to do it while working for somebody else.