Casio's obscure first video game console, the Casio PV-1000, was released in Japan in 1983 and, as you may have noticed, failed to make an impression. Built around the Z80A processor and sporting a tiny 2KB of RAM, it was underpowered when compared to the NES and only managed to have 15 games published for it. Obviously, it is nowadays a highly sought after rarity.
You can buy yourselves one via this sensibly priced Casio PV-1000 eBay listing. The console comes complete with the Casio-TJ 1 joystick, the power adapter, RF cables and a complete, boxed copy of the Pachinko UFO game. Seller ships to Europe, the U.S., South America, Japan, Australia and more than a few other places.