Not entirely new. Bookstores have been slowly expanding their ancillary offerings. I think it has to do a lot with tie-ins. Now bookstores sell movies and musi

Not entirely new. Bookstores have been slowly expanding their ancillary offerings. I think it has to do a lot with tie-ins. Now bookstores sell movies and music as well. So a book gets adapted into a movie, you can sell the book, the movie, the soundtrack, the tie-in collectibles, etc.