This will probably never happen though, unless we somehow kill the stupid farm bill from continuously being renewed. It contains way too many corn subsidies.
You're right. And I'm sure the Big Oil companies have their schemes in action too. But it doesn't have to be all ethanol though... you can make methanol from practically anything.
Anyway I highly recommend the book, it's a great read. It's not an Ethanol sales pamphlet, he discusses just about every kind of alternative fuel. The chapter on why hydrogen is the worst fuel for cars in the world is pretty funny.