For me, it is the serendipity of whatever is in the Plakias library. I take one book with me to read, likely to be an Anna Zaroudi this year, and donate it to the library. I also download a few library books to my tablet, as a back up, but I've never needed to fall back on them, except for the journey home. As there are so many books in the Plakias library, donated by so many varied visitors, there is always something interesting to read, including some of those mentioned earlier in this thread.
Arnaki