The shelves on the cabinet unit can be slid out to vent the consoles, and to dust easily. Wires are secured and labeled behind the unit. I would add cabinet doors that lock and wheels and additional storage for baskets to keep games and controllers for each system.
Pretty much my entire console collection, and nearly every machine in the picture is plugged in and ready to play. Planning out where to place each machine in relation to where the wires were going to go, how long the wires are, which have SCART and http