Is this beanie baby madness all over again?
Well, not really. But according to a new book, J.K. Rowling: A Bibliography 1997-2003, your childhood Harry Potter mementos could actually be worth some money on today's market. Entertainment Weekly decided to go through the book's handy chart to figure out once and for all if there's a point to selling any of the series.
Well, the short answer is yes. The slightly-less-short answer is it's complicated. And here's the long version.
For starters, you'll need to have a very specific version of the books if you're looking to make a decent sum. The most valuable edition is the early hardback of Harry Potter and the Philosopher's Stone—but only the one that shows Harry standing by a train on the cover. Next up is the paperback version; this will nab you slightly less than the hardcover. You can also expect to make some money off of the hardcover edition of Harry Potter and the Chamber of Secrets, if the cover art shows Harry and Ron in the flying car.
If you were a bandwagon Harry Potter fan and only own the later novels (starting with, say, The Goblet of Fire), you're pretty much out of luck. The newer HPs were sold in huge quantities (thanks to the interest from said bandwagon fans), and can still be found pretty much everywhere.
Of course, all of this is operating under the assumption that you're willing to part with your precious Harry Potter books in the first place. For our part, no amount of money could replace the nostalgia that comes from cracking open The Sorcerer's Stone, so we'll take empty pockets thankyouverymuch.