The image of vampires has changed vastly over time. Where vampires were once blood-sucking demons that where feared by humans as some deathly pale human-like monster, is now a fantasized super-human who's looks are irresistible.

I think the reasons why vampires have been so fantasized is because it's like this forbidden love with a super-human with a loner persona that lives off human life(blood). It's a dangerous relationship which makes it that much more exciting for the human lover.

In An Interview with a Vampire the main character Louis tells his story of how he became a vampire and all the tragedy that came along with the undying curse. He explains all the terrible things he has gone through and how much he hates being what he is. However the interviewers response to his story was requesting that Louis turn him into a vampire.

This response from the interviewer is a direct reflection of how humans view vampires today and how there view has changed.