5 GHz also effectively has a shorter range than 2.4 GHz, particularly with building materials in the way. That gives more available capacity, and even without t

5 GHz also effectively has a shorter range than 2.4 GHz, particularly with building materials in the way. That gives more available capacity, and even without that it's likely to be at least another year before 5 GHz becomes standard in consumer laptops, plus most people aren't going to be replacing existing equipment immediately.