with so many mounts, this macro might be something fun for a multiboxer: it summons random mounts depending if you are in a no fly zone (bg, arena, silvermoon, timless isle, etc) or a flying zone:

Code:
/run if not IsMounted() then local m,t,f="mount",{{},{}} for i=2,GetNumCompanions(m) do tinsert(t[bit.band(2,select(6,GetCompanionInfo(m,i)))==0 and 1 or 2],i) end f=IsFlyableArea() and 2 or 1 CallCompanion(m,t[f][random(#t[f])]) else Dismount() end