I agree - duck out. They obviously pay the cruise lines a lot of money for every rug they sell.
The good thing is that they are in the middle of the shopping section of Kusadasi. The worst shopping trap is when you are stick someplace where there is nowhere else to go. Our Costa Rican "Rain Forest Canopy" tour was like this. Nothing but an empty hotel to sit in for two 1/2 hours when we could have been seeing wildlife, but there was nowhere to go.