Ultima Online was the first MMO of the history, a game that introduced a ton of rares items, digital goodies with a real price in the "real" world. Being the new creation of Richard Garriott, we already knew that Shroud of the Avatar could have a good portion of these valuables.
In the Release 10 Portalarium introduced the Grand Tours, a special quest to run around Novia and get a time-limited hat that could be obtained only in that particular release ("did someone say rares?"). The Release 26 will be the last one with a "virtue" hat, but we already have here a market for the collectors.
By now these rares could be split in three big groups:





