Hogwarts is my home. I've always said that truly great writing treats the setting as if it were another character, and for me, that's how Rowling made Hogwarts so truly magical. Think about the greats: Oz? Narnia? You wanted to BE there.
I love the Harry Potter books, and wish JK Rowling would stop trying to go back to it. The books by themselves are perfect, and every time she changes something in retrospect it spoils it a little for me.