How fast a speed can one achieve with Cat7 cables?
(might be worth looking into once this becomes mainstream if it's faster)
<though I like cabled connections, no risk of wifi dropouts>
The problems with cables like CAT7 is they have a very limited bend radius. Unless you run the cable completely straight, you're gonna lose speed once you bend it, or in some cases it wont work at all.
If you ever wanted to achieve 10G speeds, you may as well go fibre.