I think funnily enough, one thing that made these old websites more interesting is how slow the web was back then.

In a way it was "animation"— I'd look at images more closely as they "scanned" into the page and notice details I don't think I would now. In a way the fact that all these pages load instantly now is a bit of a downer. Maybe because there's no anticipation any more, or maybe just because the page seems more static and unchanging.