Our Walmart has a pretty nice selection and got some nice groups of quilting cottons in when they brought fabric back. I don't buy much there because I live in a small town and like to support my LQS, as it is a very friendly shop and always eager to give us a place to meet for our sit n sew at no charge. I'm not criticizing anyone for buying WM fabric - this is just my preference as I really don't want my LQS to disappear! They've also held the line on pricing despite the increases elsewhere.
It is really nice to know I can go to WM no matter what time it is (think 3 am the night before I need a gift ready) to pick up batting, thread, Pellon, backing and notions.