Week 10 rankings, predictions and chat

[oats]

so there's a book I want that recently came out, costs like 15-20 like a normal new book. then all of a sudden, I get an email from a charity that I "support" (have never given them money, but I sign their petitions and shit, and support the cause), and they're like hey donate $40 and we'll send you this book, which is the book I want. So I'm essentially buying the book for more than I need to, but putting my money where my mouth is in terms of my support for this NPO.

I'm torn, input would be appreciated.