I love writing stories, either making a new world or a new character that builds connections with other characters. To me, every RP I've ever had the pleasure of participating in is creating a book, and not knowing what will happen next. That, and these stories are 9 times out of 10 infinitely better than anything you could pick up off the shelf or watch on the tube (in theory - while there aren't great writers out there, their ideas are phenomenal all the same ;D)