Orb of Alteration stacks

It would be nice to have Orbs of Alteration stack in groups of 30 or 40 rather than 20: they're the most used amongst the low tier currencies and they currently take a lot of space in the stash, it would also make it more convenient to carry them to roll strongboxes.

I'm fairly sure this is intended, but doesn't feel balanced; i much rather have Transmutation and Augentation in stacks of 20, which no one will ever need in big quantities.

Cheers