Ah, books. I am also married to a 'reader', although I didn't fall in love with him because of that. It's something I discovered with pleasure after we were married. I think if he hadn't been a reader we probably would not have been compatible, because the habit of reading changes the way you think. It changes the way you view words and use words. The habit of reading shapes us.

I have moved mostly from the print book, largely because of space constraints and issues with order. I did go through an audio book phase, but loose patience with the slow pace of the narration. Most book reading is done now on my iPad. I've fallen in love with that thing :) It takes me around the world and has become my new library.

I still listen to audio books, but usually only do so to help me fall asleep (I think I wrote that blog already).

When we go to sleep at night, my husband and I, we each have our iPads and our preferred book (very different reading tastes). Still readers, but adjusting to a new environment.

Edit:

I had an afterthought:
When someone narrates a book, they interpret it, through tone and pacing. I don't want that filter between me and an author. I find particularly valuable if a book is narrated by the author. That tells me something :)