I think buying things for people is a nice thing, as long as it's things they want, but there needs to be guidelines. A new set of dishes is a personal thing, and my wife and I looked at hundreds of sets in stores before we wound the right china. Cars are personal choices too. There are so many kinds and not all of them lend themselves to everyone's needs. Your dad doesn't understand this. He needs to, but his heart is in the right place. I don't know how you solve this without stepping on toes.