One of the things I really like about Emerald City is how receptive the crowd their seems to be to new comics. Compared to a lot of the other shows I go to, the number of existing Sam and Fuzzy readers who swing by the booth is relatively low. (I got very good at quickly explaining who "that first character" is on the My Skills are Varied t-shirt!) But what ECCC does have is a lot of people who are honestly interested in comics, and who are actively looking for new ones to read.
More than at any other con, people will stop for a good couple of minutes, read a few pages of my books, flip through my entire display portfolio, and ask for the site URL on it so they can check it out later. Several of the existing Sam and Fuzzy readers I met this year were people who had only discovered the comic by attending last year's show.
I love science fiction movies and videogames as much as the next guy. But still, it's a real pleasure to attend an event where the focus is comics, and where the audience is so eager to learn about new work. Between ECCC and the Webcomics Weekend, I am feeling pretty spoiled!