I've only seen one in my entire life. I want one for my model 1 Genesis, and a Genesis 2 for my Model 2 SCD.
I almost got a Model 1 for free. a couple years back.... But it was fux0red.
Here's what was wrong with it. The CD drive wouldn't open, pressing reset did nothing. We pryed it open with out breaking it, and putting a game in, and it did nothing again. He made me a deal: fix it and it's yours. We spent a good afternoon fixing it, but it died in vain. We later took a look at it, but it was even worse.
I should of took a picture! Nothing more grand than two friends sitting at a table in the kitchen looking at the insides of a Sega console, drinking some orange soda.
There goes one rare sega machine to sega heaven.