Marriott timeshare sale in caesars palace mall las vegas?

I don't know about that particular one, but timeshares, generally a really bad investment, have high pressure salespeople who will take up a longer period of your time than they say they will, and usually, the quid pro quo for your time is significantly less than what they promised. You might get a flight somewhere, for example, but since you have to book it through THEIR travel agent to get it, you have to pay a commission to them that costs about what the flight would if you purchased it for cash. So beware.