UPDATE: Had a third Model 1 #SegaGenesis I got some time back as part of a bundle. Ugly on the inside, broken P1 controller port, BUT with a shell that was still in great shape.
So, I swapped its top panel onto the newer unit, giving me a fantastic-condition back-up to my childhood (now Frankensteined) Genesis. (Just missing the extension port cover.)
And then a third ugly one that’ll be there for parts.