I'm finally getting around to reading this, 20+ years after it was first published. The book is fascinating and explains much that we see going on in society, with the "single-victim mentality" and scapegoating. But I find his exegesis a bit loose and I don't think his attempt to make the founding victim myth the myth is convincing. But then, anytime someone comes up with what they think is the monolithic Ur-myth usually fails. Humanity is too complex for that.
That being said, I definitely recommend the book. It might be a hard slog for people who are unfamiliar with anthropology and mythological studies, but I think the time spent would definitely repay itself in insight into human society.
I got the book via Interlibrary Loan, and won't be posting much from it as I need to get it read and returned...