Nobody misses The Late Night Wars more than Jimmy Kimmel and David Letterman. In addition to allowing them to openly mock Jay Leno, it was a big boost to their ratings. And Kimmel's having a hard time letting it go.
The Late Night Wars really were enjoyed by everyone (unless you had any affiliation to NBC), as they gave people a reason to watch late night TV again instead of being subjected to Jennifer Aniston being awkward. Dave seems to have washed his hands of the whole fiasco, but it really put a spark in Kimmel's butt. He does best when angry, and just recalling the whole mess got him really excited.