We spent a decent amount of time discussing this is one of my econ classes in college, and while I can't speak to this person's experience, statistically speaki

We spent a decent amount of time discussing this is one of my econ classes in college, and while I can't speak to this person's experience, statistically speaking, your best bet strictly from a financial standpoint is to buy a 2-3 year old vehicle and run it until it is about 10 years old, then sell it. Beyond that you start running into mechanical issues that will wipe out any savings over time.