not sure there, but here's a trick. call around to building suppliers and ask them about the 'discontinued bundles they keep in that shed out back'.... i get all my shingles this way for the smaller jobs i do here. and the best part is i usually pay around $2 to $5 a bundle!! i've seen them have 30 and 40 bundles of the same type before too, so you may luck out and find enough for a whole house roof! the managers are usually happy to see them go too!!!!!
*happy hunting*
DM
*happy hunting*
DM