Vintage is a technical term for "we don't stock parts to repair these anymore" not "they're unusable and you should throw it out".
I heard a story that the original Apple II machines came with a warranty that had no expiration and that California residents who purchased a machine in California are still entitled to hardware support on the machine.
> About obsolete products
> Products are considered obsolete when Apple stopped distributing them for sale more than 7 years ago.