Shroomy
Adventurer
I rarely get rid of anything, especially my RPG books. The last thing that I sold were a bunch of WEG Star Wars sourcebooks that I hadn't looked at in 15 years, but if I hated something, I'd just sell it or give it to a friend. However, with one exception, none of the of the LGSs in my area purchase or sell used games, so if I was going to sell anything I would have to go to Half Price Books or one of the local used stores (none of which have any 4e books btw, even though I was looking to perhaps buy a cheap 2nd PHB).