I pretty much always read the entire thing, and I love them for the extensive context. I have the opposite problem these days, where shorter articles without much else going on fail to hold my attention. There are plenty of those out there, but far fewer longform pieces that give me a more complete picture of the topic at hand. I actually just clicked over here from finishing this article[1] which was fairly lengthy, but also informative, relevant, and interesting.
[1] https://www.nytimes.com/2017/09/06/magazine/the-resegregatio...