I'm a very casual reader and don't really care for fiction novels (except for the few Harry Potter titles I've read). The only time I have for reading is at night. So if I'm reading a book, I could easily fall asleep.
Someone who calls himself Gryffindorian has read only "a few" of the HP books?! Horrors!
I've just started listening to The Sorcerer's Stone in the car. I don't think I could do that with a book I wasn't already familiar with, because I (appropriately) concentrate more on the driving than the listening, so I miss some details. But it's fun getting a new perspective on a story that I love.