Too? Meaning there are people who are not, which means some of these costumes she's seen probably aren't costumes. And that is rad as hell.

"I think I very much am," she looks back at him. "This is amazing! And you're amazing! How did you end up so unstuck in time, Billy Pilgrim. This must be a trip for you. I'm from Metropolis." She has seen a lot of amazing things but this probably tops the cake for her.

Very cool.