I'm not sure the primary value was due diligence. I think the value was more socially driven. You could ask anyone "did you see the front page story yesterday?" Much like you can talk about the weather and movies, newspapers were a way to connect and have a common experience.
Interesting point. I think I disagree, but if the primary value is that it was something to talk about, then it makes sense that it no longer has any value.
Also, no one talks about the weather or movies anymore either. Because people don't talk anymore. So nothing has any value now. :(