Nintendo Space World events live on in gaming history, from a time when Nintendo would save some of its very biggest reveals for the show. It's also a collector's goldmine, with demos, hardware and more revealed at the show before disappearing into obscurity.
One example is the Silver and Teal Game Boy Advance; it's from a notable year, 2000, as that was the show that unveiled the true successor to the Game Boy. We've seen this trick from Nintendo multiple times of course, unveiling handhelds with all sorts of colours that don't make it to market, so it's always a thrill when they're discovered.
It is rather pretty, but thankfully with the Switch the age of multi-coloured hardware iterations lives on, even if Space World is a distant memory.