Ah yes, super duper really clever WiFi with a growing number of ariels. All quite incompatible except in fallback mode with the huge number of mobile phones, tablets and laptops and the odd other device type that are out there.
None of this really gets past the fact that there is limited bandwidth, this is shared between all devices within range (which is a very variable concept) and as a result often sucks balls in any form of vaguely high densitity environment such as where one has more than one or two neighbours. Wires may not be so glamorous, nor so convenient (which is the major advantage of WiFi) but are considerably more efficient, faster and reliable.