There's appeal to an apocalypse ?

Those dear fans on this blogging establishment will all know I am currently reading a novel by the name of World War Z. For those new comers to this blog I will quickly summarize the gist of the novel: the novel takes place in the present and after a terrible global crisis called the zombie war. The war was caused by a virus that reanimated the dead and caused their brains to function separate from their bodies. The virus is spread through body fluids and quickly engulfs the world in hordes of the living dead. So global chaos ensues, a very interesting global chaos I might add. And as those super fans of this blog will know I promised in my previous blog to talk about why the idea of a zombie apocalypse is interesting to me. That is just what i plan to do.
The main appeal is that its rooted in realism. Its not in some far off world its not some magical being , its a disease right outside your door. Its a situation that takes place on your home field that strikes my imagination as morbidly interesting. Because I can imagine and "plan". That realism, as explained in the last post, makes this novel so gripping. These are interviews i could see on the news and that scares me.
The other interesting part about zombie apocalypses is that they present many moral decisions. Best friends and families will be infected and you will have to combat them because they will show no mercy towards you. You have to fight everyday people who through unfortunate circumstances are pitted against you. These situations expose the real person inside all of us. When our darkest our comes and we have to survive people show their colors and thats what's interesting , from a story point of view at least about zombie apocalypse's.