I really love WOW mounts and since becoming a casual player a few years back I spend most of my time in WOW farming mounts(TLPD,Aeonaxx,Onyxian Drake,etc). There are 2 mounts that I absolutely love and would make my day if I ever got them: Lich King's mount and the Sha of Anger mount.
I spent a lot of my time during this expansion farming gold until I reached 1M gold just so I could buy the Lich King's mount in my server's black market, but the mount has not appeared in the black market for more than 1 year and after noticing that in Warlords of Draenor we will be able to buy the World Boss mounts in the black market I don't really know what I should do: wait for the expansion and then buy the Sha mount or buy the Lich King's one as soon as it appears in my server's black market?
I farm the Sha of Anger every week with my characters, but I have never had any luck with mount drops so I doubt I will ever loot it in my life time.