I agree, it was definitely a major disappointment. A major problem is that the WWE just doesn't have enough guys on the roster who can work a decent match.
The only Mania worthy matches were Orton/Punk and Taker/HHH. It's no surprise that those matches contained 4 proven vets. The rest of the matches were either held back by people who just weren't ready, or booking that was reminiscentant of your regular Monday night show.
Del Rio and The Miz both looked and acted like they were going to shit themselves. Cody/Rey was a good match, but I really expected it to be better. And to those of you who thought Rey carried it...go back and take a second look. Cody was the one who gave the match meaning and a purpose. Rey was all about hitting his spots.
And what's the point of three minute matches? Either give them more time or just get them off the card.
Honestly, this just proves that Mania is no place to push new wrestlers. You go with your proven money makers. I don't want to hear anyone complain of a main event featuring some combo of Cena, Orton, HHH, Taker, Punk, or Edge. Those are your only main event worthy guys right now/.