Not only are the rich getting richer, but there will, no doubt, be more of them, said Peter Bain, executive vice president of Legg Mason of Baltimore.

The number of households with more than $1 million in investable assets has grown from 1.15 million in 1995 to 2.7 million last year, according to Cerulli Associates of Boston. Bain thinks the number of millionaires will continue to grow.

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