I was completely against e-readers when they first came out. I'm a total bookworm and to me there's nothing better than picking up a big, fat book and turning to page 1 and getting started. Then I got a smartphone and the Kindle app and realized, "Hey, wait a minute! You mean I can always have a book with me everywhere I go?!" It was the most amazing thing, because I'm the kind of person who wants to read at every possible chance, whether it's during a 10-minute car ride or a 30-minute wait at the dentist.
I upgraded to a Kindle pretty quickly and mainly use it for travel. I used to have to bring 5 or 6 books with me to last a week's vacation so to have 100 books on one small device? Best thing ever. I also read from my Kindle every night before I go to sleep which helps me relax and is easier to do because of the backlighting, so I don't have to keep a light on like i would with a regular book.
I still get a thrill when I go to the library and come out with a big stack of books. I love seeing books on my bookshelves and my coffee tables. I would never want to live in a world where "real" books didn't exist. But I can't deny how much my Kindle allows me to nurture my bookworminess and I would never give that up.