I also liked this episode for how it developed some of the supporting players.
The moment I keep coming back to is when Phyllis gives her triumphant smile to the camera after her customer reveals the picture of his equally coiffed wife.
With barely a word, that scene says so much. On one hand, it lays bare the nature of the business and shows her to be smarter than we've given her credit for. On the other, it's bittersweet because we know that the beaming pride she feels through her own beauty and sexual power at that moment will be short lived. Going on a sales call to that customer is what passes for a highpoint in her life.
I also loved hearing Stanley laugh and laugh at Ryan in the car after their trip. Their adventure deftly showed Ryan's misguided ambition as well as Stanley's cynicism.
Ooh, and how great was Andy telling his patronizing and innapropriate Shark hunting story! That glare he gets from Angela at the end of the episode pretty much seals his fate.
BTW, I highly recommend going to the NBC's official site where they show deleted scenes. There's a great one between Pam and Toby. I wonder where that's going?