The cost of down is going up
http://thegoat.backcountry.com/2012/05/08/the-cost-of-down-is-on-the-rise/

my brain hurts.
Franco

It's simple. If the cost of down goes up, then the demand for down goes down. Most of us think of down cost in terms of ounces, but for some of us, it could be pounds. So, are we talking about a pound of down in pounds, or an ounce of down in dollars?

MYOG, buy a goose.

--B.G.--

But I'm downunder , that sounds like up-over kind of talk..
My brain still hurts
Franco

Franco, if your brain hurts, you should lay down, or you should lay down down.

--B.G.--

"It's simple. If the cost of down goes up, then the demand for down goes down."

Nitpicky correction: If the cost of down goes up, then the Quantity Demanded of down goes down. The demand schedule would not actually change in reaction to a price fluctuation, simply the amount people buy. ;)