I think it goes the other way round. If I wanted to watch porn I'd rather visit some porn site/whatever than play flash game with lousy animation where only point is to click on one button and wait for the protagonist/girl/something else to come. On the other hand, if you want to enjoy some normal gaming AND some hentai at the same time, you have a problem - sure, you can play one of the multitude of the Quiz games out here on NG but their interactivity stands on the same level as the game type I mentioned above. That's why we make this kind of games, to mix normal gameplay with some hentai, so that those who like this kind of games can enjoy them. If you don't like them, then ok - tastes are not discussable.

Also, you said "Surprisingly few developpers seem to have realized that." I can't agree with this, 99% of adult games I've seen were either Quizes, Galleries, Dress-ups or Click-and-wait-for-the-bar-to-fill. The remaining one percent (or less I would say) represents normal -Games-, thought at least half of them is still poorly made.

And anyway, looking at the scores of my other games I have reasons to believe the sentence: "A regular game that just gives you porn as a reward is just pointless." is pretty wrong. "If I wanted to just look at hentai pictures, I'd google them, that way I don't have to waste time and an erection hitting keys on my keyboard." that's your opinion on the matter, but many people find having to work to earn the pictures as much more enjoyable than getting them on the plate. It's all about the challenge.

Oh well, I wanted to make it clear, as this is one of the reasons I decided that making hentai games out of the regular ones can be fruitful. Thanks for the input!