part of what I find fascinating is the different reactions of the characters that are suppossedly based on their backgrounds - yet differ between those of the same backgrounds.

Lily Potter and Mrs. Dursley - sisters , both muggle-born- but one embraces her magic, marries into the wizarding world ; the other activly surpresses anything to do with magic.

The janitor at Hogwarts - a squib - and from what little we've been told about him bitter due to the fact ; while one of Harry's neighbors on Privat Lane is also a squib - but seems to be very well adjusted about it.

Voldemort who denies his muggle heritage; Hermione who defends it. The Malfoys who seem to detest anything muggle versus the Weasleys who are fascinated with muggledom.

There's material enough presented already for another 20 or so books.