As far as I can tell in order to be considered classic literature, a book needs to be long, boring, depressing and it's author dead. Most of them have interesting stories. Unfortunately they often get bogged down in archaic language, and a habit of dwelling on the unfairness of life. I read for the fun of it. I don't like to be lectured, preached to made to feel like an idiot. I don't want to have to look up several multi syllable words no one uses just to understand a sentence. I prefer heart stopping action to multi-tissue sob stories.
I don't claim to be an intellectual. I have a reasonable education and a fairly extensive vocabulary. Still when it comes to the books I choose, I'm an entertainment slut. I'll read anything that holds my attention with the objective of having a good time. A good book is an adventure that transports me. If I learn something along the way, or it causes me to think about life differently, so much the better. It doesn't have to be beautifully written in order to be entertaining, as long as the words create a clear picture and wrap me up in the story.
So you'll understand why I own all four of the Twilight books and have read them several times. I also loved the Harry Potter series which admittedly is better written. I hate the fact that critics keep trashing them. I can understand if they don't find the stories appealing. Everyone has different tastes. But to say that they are poorly written is just snobbery.