culture changes and evolves with time.
so - while anything can ultimately be entertaining to somebody, I think it's true that nothing truly can withstand the weight of that progression.
Even stuff I like, between the look of it, the style being tied to the times in which it was made, cultural references that have lost relevance, technological advancements making it somewhat obsolete by any current production standard, and other things, it doesn't actually hold up ultimately.
but also I'm not sure that matters. I mean, I like what I like. Some of it (well, I guess pretty much all of it) doesn't really hold up after 10 or 20 years or so. But who gives a shit if you're enjoying something?