Here is a quite rare and valuable item, the GG-WHITE set. They were not sold and were only given to Sega employees or developers, according to Sega Retro.
It comes in a custom case with matching accessories.
My go-to is the red model, which was one of the last releases in Japan and used better capacitors, so still works fine.
But it’s pretty nice to have put all the white Sega consoles together! Though I forgot my SG1000s for this picture…