I was going to post a 'are you crazy?' comment but I remembered that I have done this twice. The first time was in Singapore. Was sitting at the 15th floor bar chatting to the guy next to me and smiled at a busty Malaysian lady across the bar, who came over to chat. Really didn't know she was a pro until 20 minutes later she asked for my spare room key and said I should leave 10 min before her. Almost blurted out 'oh you are a hooker' before I bit my tongue. The next two hours were fun, though a bit pricey for Singapore.
The other time was in Monaco. Was in the casino in my hotel with a new best mate I had met an hour ago. Saw a girl on the slot machine. 'A prostitute, I said. 'How do you know? Prove it.' he said. (I was sure - radar active) So I wander over and ask her how much for an hour? She tells me. Sexy Russian. I give my 'friend' a thumbs up. But the amount she mentioned was in fact 20% less than I had won on the tables, so though it was not my plan at first, I had a great hour with her. Both were memorable nights - so I understand the attraction.
Still - think this sorta thing best for other places. For London, fucking a regular escort is legal, but picking up one in a hotel is not. With UKP, many other options. Still, boys gonna do what boys wanna do. We would like a review after, (though w/o naming hotel clearly)