Women and Orgasms: What's the point?

The New York Times reports on a recent study that claims women have no evolutionary purpose for orgasms. That's right. For men, orgasms are find and dandy. They serve a purpose: it's nature's way to prompt men to have sex and thereby reproduce. In women, though, orgasms are not necessary to reproduction.

Women can have sex and whether they experience an orgasm or not, still become pregnant. Of course, one might think that orgasms for women are important. If men have orgasms to prompt them to have sex, why wouldn't women have orgasms to prompt them to have sex?