My NES works, but is in shoddy shape. When I opened it up to clean it, I lost all the screws, so the top shell just sits loose, and the PCB wiggles around inside. The 72-pin connector is the original, and I have to clean it often to ensure that it works. Plus, my parents dropped white paint on it and the AC adapter when I was young.
My SNES is in great physical shape. Luckily, only the controller sockets yellowed.
N64 I just got working well. Shame about the huge gauge through the N64 logo though.
Any of you have your original consoles in near perfect shape?