I'm the kind of person who can read the same books and watch the same movies over and over. If I really like the book, I'd read it countless of times. The same goes with movies.
For example, I'm a huge fan of Sophie Kinsella. It's not everyone's cup of tea, but I could never get bored of her books. I've read her Shopaholic series over ten times PER book. I've listened to the audio books over three times per book. Obsessed much? Yes I am.
I love the movie "You've Got Mail", and watch it very often (it's even on my iPod). Sex and the City series? I love it so much; I've watched all seasons at least five times.
It's just the way I am, I guess. When I like a particular type of food, I love and stick with it for ages. I could have chicken rice or scrambled eggs with rice every single day for two weeks and not get tired of it.
Some people call me obsessive-compulsive. Me, I just call it love.