The reason hotshots pay a premium price for commercial sex is that they're also buying discretion. That $5,000 breaks down to $500 for the actual sex and $4500 for the tacit understanding that the hooker will keep her mouth shut. Anyone can find commercial sex for a "reasonable" price, but if a $200 per hour whore recognizes some famous guy, she'll get way more than $200 from the tabloid press for the story.