Maybe the initial emotional blow of losing to Arizona was worse, because it ended the championship run. The '04 series slowly slipped away in agonizing fashion. By the end, Yankee fans were in despair, but had accepted their fate. In the long run, the '04 loss was much more costly to Yankee fans, because Yankee invincibility with regard to the Red Sox was gone forever. Also, after the crushing emotions immediately following the 2001 loss, Yankee fans never had to see the DiamondBacks or their fans on a regular basis. The Red Sox and their fans are constantly around to remind the Yankee fans that the Red Sox have become the big bad boys that the Yankees used to be.