"My" Walmart is always careful when cutting, and I always let them know how much I appreciate that. I mean careful in a good way, not that they give me more than I pay for, but that they are always careful to cut the fabric correctly.
The LQS, on the other hand, has cut one length at the beginning of a cut and 3 - 4 inches shorter at the end of the cut - which is significant enough to make you come up short on fabric for a quilt.
I don't need to get more than I pay for, but I do want and need to get what I am paying for.