"Brace yourselves," says Thomas Kostigen in
Market Watch "There are going to be millions more Paris Hiltons in the world." The number of millionaires in the U.S. is soaring -- the fastest-growing group is the "super-rich" worth more than $5 million. As the baby-boom generation ages, Americans will pass down trillions of dollars to their heirs, creating a boom in trust-fund babies. "Add to that the prospect of zero estate tax in four years, and Tiffany's may run out of silver spoons."