Have you ever seen the back of a DIY home theater setup? It’s usually a tangle of wires. If you’re lucky, the display is large enough to hide most of them, but it can still look like an unruly mess.
In larger homes, you don’t want wires and cables running along the floor and distracting from your interior design. Cabling structures exist within the walls to minimize their appearance. The result is a cleaner, more stylish home.