Lee Badman comments:
Two points to consider beyond just when you move to the next great thing in WLAN:
– Many of us have invested hundreds or thousands of cable runs in our current wireless networks, each supporting up to 1 Gbps. … How drastic does our “investment” in our installed cable change with 11ac? Surely, a single 1 Gig uplink won’t be enough for an 11ac AP.
– There is no free lunch for any technology. To get to the promised data rates of 6.9 Gbps for the second-wave of 11ac, we’ll need to use crazy wide channels and reduce the 5 GHz spectrum to potentially the same state of overuse as 2.4 GHz suffers now (even if the FCC burps up more spectrum).