I imagine a lot of the prostitutes will be there on behalf of governments seeking to lay honey traps to boost their store of hot data on bigwigs, for future use to influence other states' actions.
We'll have our own 'pros' there, too, no doubt.
Douglas; I'm not sure it's companionship they are paying for. Anyway, they've probably got expensive wives and mistresses already, so they're just splashin' out a bit more for the sake of variety.