Prodigy
They're middle class couples, they have money to spend, they like to have fun, and for them, fun means trading partners. There are clubs, resorts, travel agents and lifestyle swinger services worldwide that cater to them. America's largest swinger services company, Lifestyles Organization, has annual sales of about $15 million. Come on, who hasn't thought about taking a walk on the wild side?

Implications - According to a law firm consultant named Matt Virtue (no joke), the hobby is a relatively cost-effective one. He says he spends just over $10,000 a year on attending conventions and going to clubs with his girlfriend in order to sleep with other people. To each his/her own!