You can learn a lot from high fashion brands. Theres a reason a lot of them have been around for a hundred years. These brands have the ability to constantly evolve with out breaking away from their brand integrity. Fashion is a tough arena with a constant demand to create something new and different to stay on the forefront of the market because if you dont, you disappear.
For this reason, I try to keep up with these brands. Whether you buy their products or not, you can always learn from their progressions and risks.