I'm just curious as to what people do at these "cons", since I've never went to one, and I have no clue what happens at this place, or at similar cons.

So far, from what I've heard, it's a "con" (again, what?) about movies, TV shows, and comic books, obviously. Herein lies the problem: I don't watch TV that much (all of it is crap except from Mythbusters, Futurama, and some british comedy shows every week on Dave), I'm not a frequent visitor of the cinema and hence I don't see a lot of films (I haven't got much time to see them on DVD either), and the last time I read comic books, it was the Beano (british children's comic book) and the Simpsons magazine.

Also, how is this different to something like an E3 expo, which is something that seems far more appealing to me on first glance (new shiny stuff? WOOOOO!!)?

Thanks for your input, Beartatoes.