You're basically just creating something for people who like a certain group of characters, which effectively limits your audience. That's why the only halfway decent ones are for uber popular setting (Naruto, Avatar TLA and such).
Supposedly there's going to be a new one that continues the story. Not sure how they're going to manage that but we will see. Bioware is not what it used to be.
What games do you think have the best writing? This could be humor, drama, plot, whatever. Games with something unique or exceptional about them.
For porn game I would choose Eternum for humor and Lessons in Love for sheer clever writing.
For non-porn game I'd be hard pressed to find anything...