The Price of Milk

Does anyone know why the price of milk is still high? I remember the price of milk went up like a dollar per gallon (from $2.59 to $3.50) early last summer. The price increase was supposedly due to supply and demand. Although the price has dropped some, it is still A LOT HIGHER than it was a year ago. What gives? Were we duped? I'd like to know what my readers think. I have tried to read up on this on the internet but so far have not come up with much. I'd be interested to hear any comments.