All marketing, the racing became secondary a long time ago.
The basic description of all of their races, people lead until caution, once the restart settles down that person leads until the next one, close to the end something will happen to make them talk about who can make it on fuel, and repeatedly updating everyone on how far Danica is behind.
The commentators don't help, they are so into kissing Nascar's rear. For example, Darrel Waltrip raved about how much better having wings on the cars were, they allowed the drivers to catch them when the got lose. When the were removed, it became how horrible they were, how it was so hard to catch them if they got lose, were so hard to drive.