Frank, I don't know enough about cost benefits; i.e., how does the cost to produce the corn and turn it into ethanol compare to the value of the ethanol. Being one who keeps very detailed records, I know that my gas mileage has come down a bit on the modern gasoline with ethanol. Just a couple of hours ago, I was reading a news story about how the price of corn went up 80% supposedly in the last year, and now the price of corn and soy beans have taken another big jump because of the flooding in the midwest.
I'd have to admit to not knowing enough to have a really valid opinion, but as for what I think, I think you're right.