If we’re happy, we’re just the exceptions � Bound, Not Gagged: "The author speaks with Sven-Axel Mansson, a man who “had spent many years studying prostitutes in Sweden and argued that the desire of men for prostitutes had nothing to do with sexual “needs.” Rather, the drive is socially ordained: because men need to project their own sexual feelings onto a “dirty whore,” or because powerful men like Spitzer want to give up power for an hour or two.”"
I agree partially, that isn't just sex. How can you have sexual addition then? At least it's oversimplification. For some it includes maxing credit card additcion, which many of us also have.