Yeah, I agree with you in many respects! Therefore, this thread is the last hideout from the hordes of "Sex when?"-ers
But I still believe that as competition in the AVN niche increases, the more authors will focus on plot, characters, relationships, mysteries and move further away from porny plots. The level of graphics has grown very much recently. I don’t know why is that, perhaps 3d modeling programs have become more advanced and newbie friendly. But I've been noticing for a long time that many rookie developers show very high quality graphics and very visually appealing characters from the very beginning. But the stories about the adventures of Night Molester touching his landlady and roommates at sleep remained the same.
Fortunately I have worked hard enough to select authors who primarily make the plot (thanks to help of this thread, btw), and sex in the good-written AVNs is just an spicy addition, a part of life, the explicit demonstration of which is still taboo in the public space (every year it becomes less and less taboo) but is nevertheless an important part of human relationships. So a dozen good games is enough not to lose faith in this genre