I had the same experience just a few weeks ago. I was visiting a quilt shop that was new to me in a town a few miles away. There was so much fabric that my "eyes got full" right away. Furthermore, they were playing the most ghastly music (musicals) with the volume so loud it was terribly distracting. Now, I'm not dissing musicals, but it's not the kind of music I want to listen to when I'm shopping. I had some of those songs stuck in my head for days.
I've noticed that the flow in some stores isn't good. I like it when I can walk through and there seems to be a main path to follow so that I can see everything to my right and left without back tracking or getting lost.
My husband and I call this the "cough syrup syndrome." It goes like this: you have a cough and a cold. So you go to the drug store for some over-the-counter cough medicine. There are so many kinds! Do I need an expectorant? What about a decongestant? Does anything have both? Hm. And how does this stuff taste? Will it burn my esophagus as I swallow it? I can't tell you how many times I've gone in for some cough syrup and come out with nothing. The same goes for fabric. I get overwhelmed by my choices.