They used to give decent gifts for going on the "tour". I got free tickets to the bull fight, free trip to Isla Mujeres, and twice got $100. They didn't even ask the last couple times I was there to take the tour.
must agree sunfun and make a bold warning--THE AIRPORT IS THE WORST HARRASSMENT AS YA WALK AFTER CUSTOMS TO THE TRANSPORT--TIME SHARE SHARKS !!!! just say no, avoid direct eye contact and keep moving until outside.
Once through customs change into a T-shirt that says: I just got out of jail for shooting a Time Share Sales Rep who talked to me
Try swearing profusely at them in french even fake that you speak no english at all get to your room throw out all the under the door invites change and run to the pool bar!!