This doesn't quite look like it but I could see it in a setup where they are selling them. With the clear demonstration unit the sales person could not only tell about how the water path helped to keep it clean but let the customer watch it! Then people would buy it in whatever color they wanted to install in their home.
EDIT: I didn't realize until there was another post that someone would think that people would actually go in it on the sales floor. I was thinking of if being flushed with just water to demonstrate.
would you want to see it after family of boys trooped in to use it..what nightmare....i just got toilet seat that shuts itself forgot tell son i no repeat what he said but i believe he was singing soprano