Don't think I'd trust Walmart fabric online. I've always had to be very careful selecting their fabric, some thin, weak colors, patterns offset, etc. In the store, you can feel and see the fabrics, then judge whether its really a bargain or not.
Be patient, the bolts are scheduled to return by July-August, according to the Wall Street Journal article. Seems when the quilters couldn't buy fabric on the bolt, they decided they wouldn't buy anything else at Walmart. WE"VE GOT THE POWER