Eh, Castlevania never really had good dialogue. The fact that SotN's was so awful it was funny doesn't make it good, either. Curse of Darkness had excellent audio quality for the voice recordings, but the script didn't allow for any kind of expression. Dialogue is hard for me to write, so I can see where other people would have trouble, but I don't have millions of dollars behind my projects. I can give Iga the benefit of the doubt because it's translated, but I will say it's a good thing story isn't that important to the games (SotN rocked because of gameplay and level design augmented by top-notch visuals and audio - NOT because it had a story).