Missing Mr. Potter

Does anyone else feel Harry Potter withdrawals? I really miss waiting for the next stage in the Harry Potter saga. I definitely miss the release parties that my friends and I used to go to. Those were so fun and we met some interesting people. I personally think that J.K. Rowling should expand on the world and write another series based in the magical world she created. I know she's written a few of the school books and Tales of Beedle the Bard, but I wish she's write something else! My favorite Harry Potter book is Harry Potter and the Goblet of Fire, because that's when things really begin to take a turn. My best friend prefers The Prisoner of Azkaban. So what is your favorite Harry Potter book? Are you missing Mr. Potter, as well?