Farming Zandalari Warbringers xrealm on a dead server is quite profitable (had 28g on my DK when I started, farmed for about 2 hours, my entire "Auctions" page looks like this: :
Solo Warbringers for mounts and profit | Eyes of the Beast
Solo Warbringers for mounts and profit | Eyes of the Beast
Zandalari Warbringer - Wowpedia - Your wiki guide to the World of Warcraft
Zandalari Warbringer - Wowpedia - Your wiki guide to the World of Warcraft
Why? Because it's rare! Treasures of good fortune and more in Mists of Pandaria.: Zandalari Warbringers
Mists of Pandaria: Mounts, Pets, and More — World of Warcraft — Blizzard News
Mount farming: Mists world bosses | Sivation's musings about WoW… and cooking