In our old house when I was just developing our system, all the electronics was in a open-faced cabinet under the TV.

Major hassle everytime I needed access to the wiring!!

In our current house, while setting up a new system and adding a RPCRT which pushed the equipment racks(now installed to the side of the TV)out into the room, I found being able to get behind the electronics during set-up to be the answer to any number of prayers.

Of course, now that the system is relatively mature and complete, I don't need access all that often.

But it sure is easier when I do!!
Rich.