pnichols wrote:
I had a college professor who maintained that "the least expensive way to own a vehicle" is to maintain it, and keep it, and use it - as long as possible. IMHO, a complex and expensive piece of equipment such as a personal transportation or recreational vehicle should not be considered as a "disposable item" (... other than we need to soon come up with vehicles that don't destroy the Earth's atmosphere ... and therefore replace a bunch of vehicles on a world scale).
If you are buying new or nearly new...there is a lot of truth to your statement. This is also why buying used is usually far cheaper than buying new.
But as you near the end of a vehicles functional lifespan, there comes a point where you could buy a newer better condition vehicle for less than it costs to maintain the old one.
The only exception would be if you are into classic cars or there is some sentimental value...but now financial logic goes out the window.