Remember the first microwave ovens? The one my father bought my mother one Christmas took up half of her counter space - and cost about a thousand dollars! Boy, did she hate that thing. :)
I knew some people who used their Amana Radar Range upto the late 1980s or early 1990s (they bought it in 1970 or 1971). They would say, "Well, it still works, so we keep it."