The Nuon is one of my reselling "unicorns". Often mistaken for a regular DVD player and therefore sold for less than $10, including the remote. If the controller is available it is usually mistaken for a controller for whatever console they were mimicking with that design and priced accordingly (usually less than $10).
I buy any piece I can whenever I see them. The console/DVD player alone can fetch over $100. If I find the remote or a controller those usually go for $50 or so. Not a bad turn around.
My only complaint to myself is when I have found them (I have probably resold at least one of each variation a couple of times now) is that I am often not able to afford to keep it. The profits are just too powerful to justify keeping one.
The only game I have not been able to find in some condition is Iron Soldier 3.
At one point I was offering a burn service for Nuon homebrew (fans have ported the original Doom to this thing).
There are probably close to 15 homebrew releases for the Nuon. More than were commercially released. That makes this console one of the few that has more fan support than commercial support. Another console being the ColecoVision which had 150 commercial releases and has, at last count, 180 homebrew releases released on actual cartridge (many with boxes and manuals).
Great write up by the way.
Have you heard of the Halcyon? It has even fewer games than the Nuon. Two, I believe, were released. Both Full Motion Video on Laserdisc and done in the mid to late 1980's.