As a culture, we view fame -- despite its well-known dark side -- in many ways as a pinnacle of an artist's career; artists across the world wish for their work to be recognized, popularized, appreciated by the masses.
I wrote to Sia on Twitter and expressed my disappointment. I wasn't expecting a reply, but, to my surprise, she responded and thoughtfully listened, and we proceeded to have a lengthy (by Twitter standards) conversation.
Prism as a whole is not as strong of a complete record. As the album progresses, the variety blurs together, and Katy's emotional resonance becomes less apparent. It falls victim to all the better songs fronting the album, with the more wispy songs ending it.