I have several fabrics purchased in Walmart that were also available in the LQS. Price at WM was much lower...
Have discovered that you really need to check the fabric before you buy it. But that is true at the LQS, too.
"My" Walmart is usually staffed from about 10:00 AM to 9:00 PM. The staff is friendly and helpful, and they cut the fabric straighter than the LQS!