What I'd really like is for someone to discuss and review any improvements that newer access points can have with older clients. For instance, 802.11ac brought

What I'd really like is for someone to discuss and review any improvements that newer access points can have with older clients. For instance, 802.11ac brought beam forming that made a network of 802.11n clients work better. Otherwise, what's the point when the same hardware will be 1/3 the price when we finally start getting WiFi 7 clients?