Do you change the Brand of your Shampoo?

Hi! At the moment I'm very satisfied with the products i have, both shampoo and conditioner. But I rarely use the same brand twice in succession. I have heard that it makes Your hair get used to one brand and the positive reaction will decrease. So I try to rotate brands all the time. For example I was using Herbal Essences, now I have Schwarzkopf Gliss Kur for Blond hair, the next will be Nivea Diamond Gloss shampoo. It also depends on my mood, If I want to try something new and promising, I'll buy small container of this. The market is too big, I just can't pick one favorite.