I think that for its almost palpable portrayal of atmosphere and mood, WH has few equals. It's worth it for that alone.

But I also think it's a useful endeavor because it forces people to consider the questions,

"What is the true nature of Love?"

and,

"Is Love at all costs ever a good thing?"

Seriously, at what point does what people call "romantic love" become utterly selfish? Or is it always that way? Think about Bella & Edward. We're all enthralled by their "deep, true, abiding, eternal love," but are they also being completely selfish/self-ish by indulging it at all costs? Just asking!

Love. (Romantic love). In a purely biological sense it's the urge to partner up and procreate, or partner up and enhance one's chances for survival. We can reduce it to an animalistic level pretty easily.

But it also inspires the most ecstatic and grandiose emotions, not to mention actions, that we ever experience. And those, or the desperate search for them, can often get in the way of survival!

So what IS it??

I think WH asks this question, explores it, and leaves us to decide.