As pax, I ALWAYS look through the shopping catalogue as I am amused and fascinated by what they sell and agree that much is of poor quality and much of it over priced. As a result, I hardly buy anything!
I presume that it must make money for the company but they also perceive it as being some kind of value add that helps to makes up 'service'.
I would be interested to watch the CC at work and see which pax bought what! Can you guess what someone is going to buy?