i am not soft!
Stay/don't bully Naerys. She is nice.
Costumes are another thing,there are tons of different bonuses many costumes can provide,for examples there are some costumes for act 6 only and some for act 5 and so on.(Did i specify they are mostly free ?)
That would had been understable even though many costumes may have the same effect,as the looks matter.
But Mounts serve the same purpose with some minor alterations.