There have been a couple books I've read that were like that. I think a couple games too, but none come to mind right now. After I get done though, I regret spending that much time on it when it wasn't even that good in the first place.
Well, while you're reading a book, watching a TV show or a movie, or playing a game, or anything similar to that... have you ever encountered a book/show/movie/game/etc. that seems boring or bad, but you still hang onto it in hopes of it becoming good later on? Or do you ditch it and never look back?