What it was like
You have a longbox in a closet you have not opened in years, and you still know exactly which issue is sitting on top of it. That part of you is what this floor was built for.
The move is to skip the celebrity line and go straight to the artist tables, where somebody is inking a commission in front of you and will talk about it while they work. Rare back issues surface here that never make it onto a shop wall. Cosplayers who spent months on a build stop and let a kid inspect the armor seams. Panels and workshops run all weekend, and the people running them are the ones who actually make the thing.
Pasadena Convention Center, comics through sci-fi and fantasy and anime, the whole weekend.
Bring the friend who says they grew out of this. Watch how quickly that turns out not to be true.