I like to use a rental car whenever I go on a long trip. There are several reasons for this. We have an old car, I do not want to risk breaking down in unfamiliar territory, being far away from home. The rental solves this problem. And I enjoy driving a new car every now and then. I have gotten to try out many different makes of cars that way. It also saves wear and tear on our car. If we can prolong the need for buying another car for awhile longer, that will be big savings for us in the long run. So I am a real proponent of rental cars.