I bet it's cheaper or maybe they lost old drawing talent, sadly. Yeah I worked with 3D Animation for a few years back in high school so that makes me even more peculiar about the technical aspects. Most of it is just funny looking to me. Or some artists try to go for realism instead, while the anime style just doesn't look right. I'm sure someday it can look great, but I still think we're a ways off and I'll always have a preference for 2D with hentai and anime.