Does not account for what it took for those cars to get to that mileage. The world is full of Honda Civics that have zero dollars in maintenance that make it to 200k miles and croak. Not a single VW on the list either?
The mechanics and even electronics might be ok at that level but you really don't think there is any saltwater and its only freshwater? It's probably worth a few thousand bucks to you knowing where it has been. The utility value is there for getting around.