Vee2,
Some valid points, but......
1) More ground equipment needed for loading Airbus due to height of holds. May be true when compared with 'old generation' 737's, but the New Generation is taller. Many easyJet stations load the -300 rear hold without belt loaders, etc, but have to use belt loaders for the -700. This point therefore largely irrelevant to the debate.
2) "Acquiring another 75 Boeings wouldn't necessarily lock easy into Boeing". True, but it would make easy less willing to look elsewhere, and Boeing would know that. With the current market conditions (post-Sept 11th), and Airbus keen to break into European low-cost market with this 'modified' A319 to the required config, now is a good time economically to 'make the break'.
In trim.