UNO is a SHA256 Proof of Work cryptocurrency unique for low inflation, scarcity, a fair launch and distribution. Just 250,000 Uno will ever be mined over 30 years. Unobtanium is merged mined with Bitcoin, resulting in a secure high-difficulty blockchain that is 3x faster than Bitcoin.
Uno is rare not only in the number coins issued, but also in it's fair launch and distribution. Uno was not pre-mined. The launch was pre-announced on Bitcointalk and is indisputably fair, with the first 1000 blocks mined at low reward to provide miners time to configure equipment. There is no POS inflation. There was no stealth or ninja launch of Uno.
Years after it's launch, Unobtanium remains a highly collectible cryptotoken that has held its value. Unobtanium is not invulnerable to short term price swings. But check the long term price chart in USD or BTC, and you will find that Unobtanium has an unparalled history of growth and value retention. Long term growth punctuated with short term volatility has made Unobtanium a favorite of saavy investors and traders.