DVDs have new material, they offer insight and 'insider' information and they allow access to the proverbial 'favorite scenes' without excessive remote manipulation.

I think in the 80s people went to horror films wanting to laugh at people undergoing all kinds of stress. But I don't think this audience is approaching that way. Maybe it's partly the influence of video games, also. But they're trying to figure out ways that maybe they can defend themselves against the evil.