I prefer Ethernet to WiFi for security. I have a couple of 10GbE networks at home, an RJ45 system connected to the internet, plus a fibre optic system isolated from the internet as a security precaution.
I disabled the WiFi section in my fibre-to-the-premises broadband router (so I can insert a pfSense hardware firewall before any active devices). When I need WiFi for use with a tablet, etc., I power on a separate WiFi AP.
I prefer wired headphones when I'm stationary, to avoid lip-sync problems when watching TV, but when I'm travelling on aircraft, I've switched from an old set of wired noise cancelling headphones to a Sony headset with dual inputs (wired and Bluetooth).
I still have several old mechanical switch keyboards with large 5-pin DIN plugs, as opposed to these new-fangled 6-way mini-DIN PS/2 plugs. They still work with adapters.
Wired and wireless systems both have their place. I'm not bothered about the fibre optic and Ethernet cables trailing around my house. Other people would consider them an eyesore and a trip hazard.