Our WalMart doesn't shelf their fabrics by price, but by type of fabric. Flannel w/flannel, fleece w/fleece, cotton w/cotton. Heck they are even doing a pretty good job of keeping colors together.
I would suggest you send and email to corprate and let them know they are not doing the consumer in favors by shelving similar priced fabric but should shelve them by type. As a quilter that would work better for you as a consumer.