Which is t he whole point of this discussion. And my personal preference is a good story in a visual novel, not just porn. Just like some people watch TV just for porn, and some like a good movie with a story. Both can have sexual situations, but it is more interesting to me if there's a reasonably believable story behind it (as believable as possible in these sorts of things anyhow).
Someone else who just likes porn without a story telling ME to go read a book or watch a movie is like me telling them to go watch porn movies. We all have difference preferences. There's porn on TV and books without a good story, just like there's porn in visual novels without a good story, and in all these forms of media, there's people who take the extra time to write a good story and maybe mix in sex where it makes more sense (or as much sense as fiction can make anyhow).
All are valid, and my preference for a good story is valid. Just because the majority may be just porn, doesn't mean they all have to be, and it doesn't mean I am wrong to like it because someone ELSE prefers just all porn and no story. It's a personal preference.