If you hire a prostitute, they obviously aren't going to emphasise the fact that they wouldn't be there if you hadn't paid them. Part of what you're paying for is the fantasy. And sure, some people will be taken in by it. I've no doubt some people have fallen in love with prostitutes. Is that an indictment of the business model (both of casinos and prostitutes)? I'm not sure, but it does mean I don't find it problematic that casinos don't post their business model on the door. I think that, if the existence of casinos which don't emphasise their business model is problematic, then the stronger argument is the one which holds that it is better to not have casinos at all.