We need to support the LQS or they won't be there the next time you want some nice fabric, otherwise. The on line stores are probably fine but they don't pay rent or pay employees to help you when you are stuck with matching a color, etc.
I am able to tell quite a bit of difference in the quality of the fabrics between Joanne, Hancocks and LQS fabric.
I have also been somewhat disappointed in what I bought on e-bay, pictures can be so deceiving.
I do plan on ordering from MSQ when the right things come up.