Cleaning up the garage last month and I came upon some of my old Stephen King books. Several of them are first edition hard covers.
Well thanks to the big ol interweb I found out that some of them are quite valuable. My first edition Carrie is selling for $2500. Others I have are worth between 250-500.
I even have the original paperback versions of the Bachman books and not the one that was compiled together. The rarest one of them is Rage and it's selling for $750. The other three range in price from 80-250.