I recently participated in an interesting discussion about adults purchasing YA books and whether this is a good thing. Of course, I do think it's a good thing.
https://soundcloud.com/booknet-canada/more-adults-are-buying-ya-books-for-their-own-reading-enjoyment-but-do-they-realize-its-ya
https://soundcloud.com/booknet-canada/more-adults-are-buying-ya-books-for-their-own-reading-enjoyment-but-do-they-realize-its-ya