My main now (Rogue) has 144 Mounts...however...
My: warlock has both Spectral Tigers,
: hunter has Time-Lost Proto Drake
: and 3 or 4 alts have Brewfest Ram, Headless Horseman, and Kara mount....but my main doesn't have those. So I for one am all for BoA mounts/pets. We earned them and it is pointless to let those things go to waste on alts collecting dust imo.