On the one hand, the fact that you have a refrigerator built in 1966
that still works is remarkable!
Mine is 1969 vintage, and while the interior plastic is cracked in some places, the freezer door hinges are busted, and there are some stubborn stains I can't get out, it still works! When I first got it about 15 years ago, I figured I'd replace it with a new unit once it died. (It was still working great as of last week)
So, some really old time AS owners once told me I would be crazy to replace this unit with new. "The new ones only last a few years," they said. "You'd be better off spending whatever it takes to repair this one, and if you do get rid of it, call me, I'll buy it off of you"
So, there's that. Given how it seems everything today is made with planned obsolescence, cheap material and cheap labor, having something made during a time when reputation, quality products and pride-in-craftsmanship where in vogue might mean something.