I quilt samplers for a shop and it's always a quilt that she has patterns for--but some do sell out very fast and then she has to take down the quilt, which really means making more than one change to not leaves spaces. hard to keep up with!
One thing that bugs me about some quilt shops (not my LQS)is restrictions on taking pictures, but I do understand, it's just that I'm wanting the picture to remind me of a quilt I liked and may want to get the pattern, not because I'm going to draft it myself.