I think people (and I am the same) have fond memories of the games of yesteryear. Games that back then were fairly unique and in the minority.

Morrowind was my all time favourite game and yet revisiting it for me 6 years later it has aged. Yes I know mods have done this and that but now I just look on at it as the first truly 3D game I played and it has a certain place in my heart.

This is similar to DD. People remember it for what is was a rather quirky yet unique little game that came underneath the radar. Personally I am not sure how they can possibly follow this up without making it pretty much exactly the same.

I guess it's the same as George Lucas. Hell the hell does he live up to his own hype with the first three films?