Also, Mythic mounts are unlocked for your entire account. These will literally only be unlocked 1 character at a time. So if you think about it, it at least rivals the 1% Mythic raiding mounts if you have a bunch of alts.
Right now, I have a Shaman, DK, Druid, Warrior, DH, Lock, and Paladin alt I want to get the mount for. It'll be especially hard for my Warrior, Druid, and Lock considering they're still level 100...