I used to ignore this section, as it used to be just mainly drek.
However, as I consign a lot of books, I did start noticing that a lot of dupes of mine get put into that section versus in the past where they would have two books of the same grade listed right after each other.
I noticed that in a lot of cases, the second book does better because I think some people want to win something after their main targets are gone or they are looking for a few more books to make the shipping more economical.