I'm wondering if this is due (in part) to the wild popularity of Mad Men.
I sat down to watch the pilot episode of The Playboy Club after my sister told me that she had watched it and she liked it. I kind of expected it to be trashy, but I was plesantly surprised. The costumes were beautiful, the make-up was so classically glamourous. I don't know a whole lot about film yet, but I LOVED the lighting. The story line was also surprising to me.
As for Pan Am, I can already tell that I'm going to adore this show. I thought the pilot episode was brilliant. Seriously, don't get me started on the costumes. Beautiful.
You can find both shows on Hulu. You should really check them out if you have a chance.