I have honestly no idea, since I get most of my books as gifts. Which I guess means they're all the least expensive, LOL, at least for me!
WRATH: What author do you have a love/hate relationship with?
I'm on pretty good terms with most the authors I read, except for James Patterson, whom I strongly dislike. I don't think I have a mixed love/hate relationship with any of them.
GLUTTONY: What book have you devoured over again and again?
I do a fair amount of rereads. The series with the most rereads for me is, unsurprisingly, Harry Potter, but the series I've reread the most often recently is Renee Ahdieh's The Wrath and the Dawn Duology, which is definitely delicious.