Theoretically, your reply is sound. But at least in /my/ geographical situation (my) theory proves to be a consistent (thus far) good reality. I apologize for having such a "limited" experience.And if you live in a country with only one 5GHz 80MHz wide non-DFS limited power channel available and all the rest in non-guaranteed DFS the theoretical perfect idea becomes severely limited by practical use factors. What is fundamentally flowed is the assumption everyone on this forum lives in the USA, gets Amazon US prices and availability and needs to pay for all theoretical possibilities, just in case. This extra port is $100 more for @bludge, for example. Do they need it really?