"Who's that in purple?"
"That's, uh... Catwoman?"
"I wanna be a catwoman."
Elizabeth pointed to Catwoman's precipitous neckline: "Is that--can you actually see her articulation?"
"Uh... maybe when you're older, Lyra."
ETA: See "More from the Secret Life of Dolls" for another dolls-browsing-dolls entry (I believe this is the first time Elizabeth, one of the dolls considered, is mentioned).
ETA 2: This is as good a time as any--I'm thinking of putting together a Secret Life FAQ, so if you have any questions...