Nick has just seen an ad in the paper for a new Nissan picku…

Nick has just seen an ad in the paper for a new Nissan pickup truck for $15,000. He hurries to his local dealership but is disappointed to learn that the truck is already been sold. “Don’t worry,” the salesman tells him, “I can make you a terrific deal on a similar truck for only a few dollars more per month.” Which of the following tactics is the salesman using?