This is why I shouldn't make grand generalizations.
In my
personal experience, I've found that most novels that lack that special something to grab your attention at the start tend to be lacking in other areas as well. It might be the writing, the characterization, the plot, all of the above, etc.
Good writers, however, tend to know that the beginning is important to a story, and thus start a novel off right, simply because they are
good writers. The beginning doesn't have to be bombs-exploding, ninjas-dueling epic or anything, but it needs to capture your imagination. That's what I mean when I say a book needs to "start off with a bang": it doesn't necessarily have to be an action-packed start; it just needs to have a hook of one kind or another--it
has to be interesting.
The book sits on my nightstand, innocent in its trappings: a simple diary, encased in a simple cloth, the muted floral print stained and dirty. The small brass lock is jammed in the open position. The whole ensemble gives the impression of a child's diary, lost in the sandbox in school.
It scares the hell out of me.
The mist comes and we dare not separate. That was how we lost Charles.
^This, right here, is exactly what I'm talking about.
It's not a fight to the death or "a flash and a bang" kind of start, but this opening grabs your attention and makes you want to read more to find out what's going on.
That's what I meant by an interesting opening. An opening can be both artful and still hook you like a fish.