Well I guess I'm one of those you're talking about. I drive a 30 year old pick up. Still listen to vinyl albums on a 42 year old turn table. 1/2 of the telephones in my house are rotory dial phones. And I'm still shooting film with several vintage camears ( Olympus OM1 & OM10, Nikormat FT2 & EL ). I only have manual focus lenses. These things have held up well over the years. During the last 3 decades photography equipment changed drastically. The market was flooded with with cheap plastic bodied automatic cameras. These cameras were designed to be used by people who did not care to learn about exposure, apeture, shutter speed, focusing, lighting, etc. They include features like: auto focus, pop out flashes, built in auto winders, auto zoom, etc. For people who do not like or use these feature it was things we had to work around or override. These things also did not last as long. Mainly becuase the cameras would have been to heavy with these features on them. So the manufacturers had to use lighter flimsier materials. Here are somethings I've learned about most manufactured goods:
Plastic will rot and crack before metal will.
The fewer parts a machine has, the fewer parts that will wear out.
A chinnese made computerized controlled electronic device will not last as long as a quality made mechanical device.
The battery in an FT2 will last about 5-7 years. While most modern cameras need new batteries constantly.
So why an I still ussing these older things? Becuase after several decades they still work well. And I an in total control not the computer in the camera.