I just read that tickets for SDCC 2011 have already sold out (in seven hours)! SDCC really isn't a comics convention anymore. It really is an "all-media" event. It is too bad that that the people who really are interested in the comics part of the event aren't able to attend, crowded out by the movie, television, and press people who aren't (weren't?) really the target audience of the con. Maybe everyone who attends should be required to show proof of at least once comic book purchase that year. Boost up the comics industry a little.
That being said, I am glad we got to attend. But as I said then, and say now, I think once is enough.
It's very crowded, people will grab anything that is free, and the level of noise and congestion on the floor made it almost impossible to talk to anyone.