She's right. Unless she's got a book or computer game to play, it WILL be boring. People sit quietly while the judges are judging because they want to hear the judges' comments on their chins.
Sometimes, if there are other kids, they can play out in the hallway or adjacent area, depending on where the show is. Sometimes, though, they are happy with alone time for themselves.
At my first time at the WI show, there was a couple there with the best little boy in the world. He played his computer game all day and never made a peep or complained about being bored. I was very impressed.
She might like to see all of the chinnies, but I don't know if that will be enough for her...maybe you do???