Most personal finance experts would agree that keeping your vehicle for up to 10 years is a good economical decision. The economics of keeping a vehicle that long are overwhelmingly convincing. So why is it so rare to find someone who owns the same car that long? After all, today most cars will keep working long after a couple hundred thousand miles. So, why do people keep buying a new car when there is nothing wrong with the one they have? Peer pressure? Maybe it looks out of date? This…