But the "signed first edition" of the Flusfeder novel is different: there's no add-on gimmick here, just the planting of the idea that this is a serious novel that's going to be talked about, bought and reprinted ... and, eventually, be worth something (provided you have a signed first edition). After all, signed first editions of Harry Potter and the Philosopher's Stone go for upwards of 20,000; a mint copy of Fever Pitch will fetch 750; even a first edition of Trainspotting is worth 300. So can a publisher create an instant collectable like this?