Batgirl has a much lower print run, shops didn't order enough, AND it sold out, so it's gonna be hot in the secondary market, as is Catwoman #13 which comes out next week and is already sold out. Pick that one up if you can find it.
Indy's CGC Gradings Master Thread - http://tinyurl.com/p45agbh
Want your Comic Graded or Pressed? - http://tinyurl.com/qywwqx5
Notify you of new Gradings? - http://tinyurl.com/no58cku