As long as the vehicle is reasonably dependable. Sometimes an older undependable vehicle might not be worth it. (think of stranding a loved one, or dying in winter, etc)
That said, brand new cars without spares are a disturbing trend.
I knew a retired guy years ago whose speciality was fixing microwaves; any dead microwave you could find he'd get working again. They still exist, but they're nearly impossible to find unless you hear about it.
I know I'd love to find someone to offload these old SpeedQueens on (even there, a burnt out motor was $350 to replace, a brand new one was $700 or so).
I had a friend who (years ago) bought a version 1 humvee, but it turned out to be impractical, struggling to achieve highway speeds while guzzling gas like a toilet.