Why do we Still Care about the Dow?

Yes, it's been a few months without posts, but the news (and news reporting) has been relatively tame.

Here is an article on a topic that I've used over the years with clients - the Dow is the most followed, but probably not the best representative for the stock market as a whole to track. The S&P 500 is at least a bit better in tracking the general market movement (and one of the Big Three reported indexes).

Thoughts?