Features:

Many exotic vendors travel with Silas Darkmoon, offering adventurers hard-to-find items from the far corners of Azeroth.
Players can earn tickets by gathering trade goods for Darkmoon Faire's vendors, which can then be turned in for items and special equipment.

Strange sets of cards have been broken up and scattered across Azeroth. Players who are lucky enough to collect a complete set of these cards can turn them in at the faire to receive epic items.

Cheap booze.