John D. Rockefeller threatened rivals with bankruptcy if they didn't sell out to his company, Standard Oil. Bill Gates was ruthless in building Microsoft into the world's largest software firm (remember Netscape?). Indeed, many millionaires privately admit they're "bastards in business," says Prince. "They aren't nice guys." Of course, the wealthy don't exactly look in the mirror and see Gordon Gekko either. Most millionaires share the values of their moderate-income parents, says Lewis Schiff, a private wealth consultant and Prince's coauthor: "Spending time with family really matters to them." Just 12 percent say that what they want most to be remembered for is their legacy in business, according to the AmEx/Harrison study.

Millionaires are also seemingly undaunted by failure. Crane, for example, now runs a successful company that screens tenants for landlords. But his first business venture, a real estate partnership, went bankrupt, costing him $20,000 — more than his house was worth at the time. "It was the most depressing time in my life, but it was the best lesson I ever learned," he says.

6. "Taxes are for little people."

Most millionaires do pay taxes. In fact, the top 1 percent of earners paid nearly 40 percent of federal income taxes in 2005 — a whopping $368 billion — according to the Internal Revenue Service. That said, the wealthy tend to derive a higher portion of their income from dividends and capital gains, which are taxed at lower rates than wages (15 percent for long-term capital gains versus 25 percent for middle-class wages). Also, high-income earners pay Social Security tax only on their first $97,500 of income.

But the big savings come from owning a business and deducting everything related to it. Landlords can also depreciate their commercial properties and expenses like mortgage interest. And that's without doing any creative accounting. Then there are the tax shelters, trusts and other mechanisms the superrich use to shield their wealth. An estimated 2 million Americans have unreported accounts offshore, and income from foreign tax shelters costs the U.S. $20 billion to $40 billion a year, according to the IRS. Indeed, "an increasing number of people want to establish an offshore fund," says Vernon Jacobs, a certified public accountant in Kansas who specializes in legal foreign accounts.  

8. "Like my Ferrari? It's a rental."

Why spend $3,000 on a Versace bag that'll be out of style as soon as next season when you can rent it for $175 a month? For that matter, why blow $250,000 on a Ferrari when for $25,000 it can be yours for a few weekends a year? Clubs that offer "fractional ownership" of jets have been popular for some time, and now the concept has extended to other high-end luxuries like exotic cars and fine art. How hot is the trend? More than 50 percent of millionaires say they plan to rent luxury goods within the next 12 months, according to a survey by Prince & Associates. Handbags topped the list, followed by cars, jewelry, watches and art. Online companies like Bag Borrow or Steal, for example, cater to customers who always want new designer accessories and jewelry, for prices starting at $15 a week.

For Suzanne Garner, a millionaire software engineer in Santa Clara, Calif., owning a $100,000 car didn't make financial sense (she drives a Mazda Miata). Instead, Garner pays up to $30,000 in annual membership fees to Club Sportiva, a fractional-ownership car club in San Francisco that lets her take out Ferraris, Lamborghinis and other exotic vehicles on weekends. "I'm all about the car," she says. And so are other people, it seems. While stopped at a light in a Ferrari recently, Garner received a marriage proposal from a guy in a pickup truck. (She declined the offer.)

9. "Turns out money can buy happiness."

It may not be comforting to folks who aren't minting cash, but the rich really are different. "There's no group in America that's happier than the wealthy," says Taylor, of the Harrison Group. Roughly 70 percent of millionaires say that money"created" more happiness for them,he notes. Higher income also correlates with higher ratings in life satisfaction, according to a new study by economists at the Wharton School of Business. But it's not necessarily the Bentley or Manolo Blahniks that lead to bliss. "It's the freedom that money buys," says Betsey Stevenson, coauthor of the Wharton study.

Concomitantly, rates of depression are lower among the wealthy, according to the Wharton study, and the rich tend to have better health than the rest of the population, says James Smith, senior labor economist at the Rand Corporation. (In fact, health and happiness are as closely correlated as wealth and happiness, Smith says.) The wealthy even seem to smile and laugh more often, according to the Wharton study, to say nothing of getting treated with more respect and eating better food. "People experience their day very differently when they have a lot of money," Stevenson says.