The complaint filed in the Emperors Club escort bust, which apparently nabbed Eliot Spitzer, casts a rare spotlight on the dealings between the wealthy and high-priced escort services. (See the Journal's article on Mr. Spitzer.)

For one, the complaint makes clear that the wealth boom -- and the explosion in the number of multi-millionaires -- has created entirely new pricing levels for escorts. According to the complaint, the Emperors Club escorts charged between $1,000 and $5,000 an hour, depending on their "rankings." Clients...