In my opinion, unless you're opening 350-400 chests there's no point buying any. Last event I opened 200 and the best item that dropped was glowing white fashion boots.
To answer your original question, I am yet to open a mount
Re: Mount drop rate
#21Elsroth - 220+ Mage - Clan Avalon
There are 10 types of people in this world: those who understand binary and those who don't.
There are 10 types of people in this world: those who understand binary and those who don't.