Within Tucson are a number of very nice quilt shops with excellent selections of 100% cotton quilting fabrics, books, patterns, and supplies.
Most of the shops also have a number of samples hung through out them.
One shop is definitely over enamored with itself with prices on fabrics being considerable out of line (high) to what experienced quilters expect to pay.
To find information on specific shops in and around Tucson, see my Journal on Quilter's Travels.