What is the theme in The Ersatz Elevator by Lemony Snicket?

Popularity is a major theme in the story. Esme Squalor is obsessed with things that are "in." Her entire life and as such, the life of her husband revolve around being popular. From the descriptions of the other residents of 667 Dark Avenue, this particular obsession is widespread. The Baudelaires are only adopted when it becomes popular to have orphans. As The Baudelaires quickly learn things go "in" and "out" very quickly. This leaves them wondering what will happen if orphans go out of style.