I quite like the shops as they are a distraction of airport life and useful to browse at times and buy. In the high end shops it’s easier to browse and view goods due to quiet shops, which help in the overall purchase either at the airport or elsewhere. I’m not always convinced that the prices are significantly cheaper.
But if I’m not looking to buy I just ignore the ships and walk by, I often like to purchase on board on the outward flight rather than the return or from the return airport.
There may be too many in some locations,