In my experience, it doesn't matter where you buy fabric. I've bought some expensive stuff at quilt shops that was absolute garbage and some inexpensive stuff at Walmart that was wonderful and vice versa. I feel the fabric and look at it closely. My suggestion would be to find fabric that you like and take note of the manufacturer, not where you bought it. After all, the manufacturer is the bottom line in terms of quality control. If you buy fabric that turns out to be not so great, don't buy from that manufacturer again regardless what store you happen to be at.