Common sense. Gigabit routers do not come with 200 feet of fiber cable.
Will Routers supporting the new Wireless/Wifi standard come with 200 feet of fiber cable? Because any Wireless Access point- whether 100gbps or not- is going to need a
wired WAN connection to the internet and will require that infrastructure just as any wired LAN solution would.
Gigabit Internet over fiber to the house is very pricy.
Gigabit Internet over Gigabit Wi-Fi will be economical. Relatively speaking.
It seems you are either not understanding the networking concepts at play or- possibly- are being purposely disingenous.
A standard router, as used in your typical household, has wired connections. You connect cat5 or compatible cables to the LAN ports, and connect the computers; simple enough. They have one WAN connection. Depending on the router, you might connect different jacks. Often it's another Ethernet connection. a Cable-connected system, for example, would have the Cable coax going into a Cable Modem, and from that Cable Modem a Wired connection goes to the router.
Routers also, of course, support wireless connections. You can imagine them simply as "invisible" extra LAN connections that are wireless. However, this
only eliminates the connection from that computer to the router. The router and it's wired upstream connections still exist.
The idea is there is no "gigabit internet over wifi" the phrase is rather nonsensical in the same sense that saying that removing a school zone would allow you to drive faster on a highway several miles away. Gigabit wifi will increase the speed of wireless connections between an access point and a computer. Access Points are not "ISP Nodes" of any form; instead they are just routers or router/modems connected, via cables, to the ISPs selected backbone. (DSL/ADSL uses Phone jacks, Cable uses Coaxial cables, etc).
Thus I fail to understand the reasoning that Gigabit wifi would in any way encourage improvements to the networking backbone where the advancement to gigabit ethernet connections didn't. It will not eliminate the expense of having to lay down high-speed cable backbones- Wifi does not comprise any part of the networking infrastructure until after the service has been delivered to the ISP customer, and well it shouldn't the advertised transfer speeds are a ideal maximum and generally is not entirely suitable beyond the size of your typical household.