I found the batt-mart site a bit hard to navigate too, I didn't like it all crammed over on the side, but I thought for the prices... I did look at the garage sale one, like you said Gem it's not a great deal right now.
I'll be sure to check out that wholesale quilt batting one. I'd be willing to wait a bit if I knew my great deal was comming, after all I already have one top waiting...