The Beer Essentials, Lakewood, WA
DME 2lb bag $7.75
They only carry White Labs and I think it was about $7/vial but a great selection of different strains.
Rocky Top Homebrew, Olympia, WA
Yeast some White Labs, Some Wyeast and I think about $7 as well for them. They also have packages of Danstar Nottingham Dry for $2.75 I've been using more and more of. Much better value.
I don't have much to compare it to. Only been brewing since November.