Re: "when Wi-Fi gets more reliable every year"
We were lucky enough to move into a house that was pre-wired for networking and connecting things like set-top boxes and game consoles really is a must for reliable data.
We do have wireless for our phones, but TBH I wire everything that I can primarily not for the speed, but for reliability.
You don't need many people in the vicinity with their own WiFi networks to swamp the neighbourhood to the point that it is not very practical to use.