I hear you! One of the things I loved about the hyperink proposition (FD: they're a YC company) is that it's a 100% moneyback guarantee. Or if you'd rather not, email me and I'll send you a copy of the PDF and you can buy it later if you like it enough :)

edit: actually, don't even bother buying it if you like it, just donate it to http://fightforthefuture.org :) 10% of book proceeds go there anyway.