I've been going to PMX since 2006. WHOA!!! That's a while ago! I went because one of my favorite singers, Olivia Lufkin, was performing. What I didn't expect was 2 opening bands that were awesome, one of which, I now currently follow, Uchuu Sentai NoiZ!
PMX, Pacific Media Expo, has grown since then. Well, in general, the otaku population has grown along with the cosplayers and that's good!
Around the booths, there was some cool stuff, statues and prototype products, similar to what you'd see at the San Diego Comic-Con! This HUGE Voltron/Go-Lion was AWESOME! Wouldn't it look great in my room? :D