Romancing the Vulcan

Why do we enjoy characters that are emotionless interacting with "normal" emotional people? Wesley Chu moderates with panelists Whitney Ross, Amy Sundberg and Tom Doyle.

From the programme:

"Emotionally restrained heroes were popular in the age of reason; after Romanticism swept Europe, Jane Austen's Darcys and Knightleys were the only emotionally Vulcan-esque heroes left in media for quite some time. From Darcy/Lizzie on the page, to Spock/Uhura on the screen and Spock/Kirk in our fanfic, we love human passion rubbing up against Vulcan reason. What are other models of this dynamic? What's so appealing about loving a Vulcan...or being one?