I think that old rims were made to last forever.

It was before corporations figured out that if it didn't break, you wouldn't need a new one.

I know a guy that uses his Model A Ford daily as a farm vehicle. Works just fine, no need for a new F-150.

I rode my old Campagnolo friction shifting, tubular wheeled, bike today. It worked just fine, faster than me, and as an added bonus, I can fix whatever breaks on it.