Out of all the people, publishers, editors, and such alike, michael_b is the only one I've seen as of yet to be professional and not defensive.
I, personally, prefer to have the book in my hand as opposed to reading it in digital format. I do own a nook, however, since it's digital ink technology is much like a book and the books are cheaper. This may be why I'd prefer my books published in paper; I find the feel of it helps me fall into the book easier, rather than worry about dropping or hurting a $150 machine.
I do not write erotica, but, if in a 550,000 word series, the plot call for a heavy and hot sex scene, I'll write it, and have. It's still unpublished, though. Haha.