2000 Forester, 111,000 miles, fully functional. Per the attachments, surface rust (I am assuming it hasn't rusted through for repair cost guesses) has graced me with its presence in multiple locations ...

Rust eats through used cars with a slow, relentless precision. It hides in seams, under carpets, and on the frame where buyers rarely look. Left alone, it spreads until the metal weakens, parts fail, ...