I´ve bought much older books at J&J .. I bought Bret Easton Ellis´s book " Less than Zero " last year and it was a first edition . Published in the US in 1985 . I paid €6.50 for it . Maybe J&J have changed their policy as I haven´t been there for about 4 or 5 months .
By the way I got to briefly meet Bret Easton Ellis a couple of times in London , some years ago . He signed one of his books for me ! Interesting guy .