Evil4dead4 is obviously a troll...
Troll or not, he isn't completely wrong. Part of the charm of an AVN game is the mystique of unlocking the next scene. you get bored after seeing the same content over and over again, albeit different positions. Why else would you buy a new AVN game and not just revisit the one you have? Moreover, why else would you complete the game? Exactly!
Although I would not use wholesome, that just sounds ... aged. I will say that when you get closer to the end the scenes do occur more often (almost every time you talk to a girl when progressing the game). This tends to make the game a little boring, especially when you have to continuously run the map to find the missing pieces of whatever.
Summary? People will continue to be intrigued if they feel progress is happening, or experience something new.