I am not qualified to speak about the technical merits of the A380, but, as a passenger, I can relate a conversation I had with Larry Kellner, President and CEO of Continental Airlines this past Saturday. I was in Houston along with 300+ other frequent flyers from Flyertalk.com to discuss issues from management's and the customer's perspectives. (Everyone paid their own A/F and hotel bills). Meeting with your best customers is something every airline should do.
Larry's view on the A380 was: " I could think of better ways to spend $15 Billion. You can make money with it on the weekend, but what do you do with it during the week".