I read the first book before the first movie came out and really liked it. I also saw all the movies and really loved the first 2. But I never got around to reading the other books until a couple months ago. I always planned on reading the rest of the books, but I never felt like I had enough time to sit and read.
But a couple months ago, I moved across the country. I drove from Oregon to North Carolina, so I decided to get some books on cd to help pass the time. I listened to the first 3 HP's during my drive. I was totally hooked and I had to keep going, so I read 4, 5, and 6 in the next couple of weeks. I went through them so fast that I have a hard time remembering which things happened in which books.