What's your reading preference: “e-” or “p-”?

In the January 5th Bookends column in The New York Times, two writers weighed in on the subject of e-books versus printed books: what they liked about each type and what ultimately was their preference. (Spoiler alert: It appeared that print books won!)

For my part, I am more than a little curious about the marketplace's preference, since my published works include a non-fiction book out in both formats, two short stories in e-book format only, and a fiction collection that, when it comes out...