For one thing, it didn't have video, and it's just a little too far back at this point. For example, I really take advantage of the EVF (in fact, my LCD is usually off and turned in. Another factor was that the A700 (and grips) were getting good prices at the time (about a year ago). At that point, I had an A77 and A33 (with plans to update the A33 to A37); I also carry a GH2, mostly for video.
However, about a month ago (or less) I found that I had to have a non-GPS camera for some travel, and also realized that I would be doing a lot of cropping as I could not take long zooms (which put the A57 out of the running). So, I picked up an A65 as it is so similar to the A77, but yet is smaller and lighter - better for travel. And, ha ha, I wouldn't need to buy another Friedman book...
Since so many of the features are the same, the sensor is the same, and the IQ similar, I am happy with the A65, although I may still upgrade the A33, in part to get good pricing on the new 18-135 lens.
I don't do weddings, but I do believe in backups. I never travel with only one camera, and, even on a daily basis, I will carry something like an LX5, as well as a little Flip.