The best one I had was recently. The sales person was really nice, but mentioned we had been referred by another couple ( who we haven't talked with in 25 years, which I shared ). We then got him talking about his career and family, and we reinforced that. As we started the "tour", for each point he made, I was ready with a knowledgable response ( thanks TUG ) which was often counter to the script ( but done so nicely ... don't be rude to a new "friend" ). When he pointed out the great resorts we could travel to, I pointed out how those were in areas we just didn't have an interest in visiting. At the end he took us to the "office" and said he would be back in a few minutes. He brought in his manager who handed us the gift card ( for a very nice dinner onsite ) and thanked us for stopping in. We said our goodbyes and were on our way in the promised time. We had also attained a nice suite at a highly discounted package for the week in exchange for taking the tour.
At our home resort, my son was interested in the cash incentive, so he and his wife attended the "owners update" tour ( we are the owners ), and at the end thanked them for the presentation and information. He said it would be very helpful because we were signing over the deed for one week to him ( which was very true and did happen ) and this helped him to see more of his options. They took the cash and left.
Finally, at a Diamond property, we finally caved, and went with our friends to get the free adventure tickets ( a nice train ride and a good meal ). When the guy started pushing, I told him they would need to complete the upgrades ( long promised, property a mess, no progress ) to the facilities and the rooms ( our "kitchen" was a microwave on a counter and a mini-fridge ) before we could consider investing a penny in their program. After that, a firm NO as he tried to continue, and we left ( with the tickets ).