It just shows you how stores can differ.
I got my pair of false percula's at the Petco out west on Maple, over a year ago, and they have been wonderful, no problems what so ever. I always said I would never buy from there, but I took the chance cause they were healthy looking, and tank raised.
I haven't been to the store on 72nd in a long time, way before they even had saltwater tanks, but it doesn't suprise me.