What is the point of them? To read them before the movie? But what if you don’t want to get spoiled? To read them after the movie to. . . relive it? But you can just rewatch it.

So really, does anyone know the point of them? I mean I know the company’s point is to make money with the supplemental materials but what about the consumers?
For those who do buy the movie novelizations, please comment with why.