Sheetmetal: who has the best pricing?

I work at a body shop and I just set up an account with AMD. We get a fairly decent discount but AMD has set minimum prices you can sell the items for. So basically it doesnt matter where you get it from the price should be the same. If its not, its not AMD or someone is not following their policy.
Anyways, I have always ordered straight from AMD. Their shipping charges are very reasonable.