My Week 1 mats, alliance side.. aren't selling terribly well; horde side, going great.
But chances are, that's what has happened alliance side at least.

Not sure that I want to spend 3g per stack, to buy 25 pages of auctions; somewhere in the neighborhood of 1500 auctions up...
I paid a maximum of 1g per stack... and am listing at 10g a stack at the moment.

Horde side, spent no more then 1g per stack on Copper, Tin, Peacebloom, Silverleaf, Linen and Wool.
And they're selling in the 20-30g per stack range.