Yes, I will. The more characters you have, the less of a pain this game becomes in certain bonus, storage, and financial ailments (not just for meseta). Having 150 inventory slots on a main character is a blessing. 1000 character storage on a main character is an even greater blessing for my closet-storage needs.
Will never put anything else in its storage. This game has 1000s of costumes/color variances. Leaving them in character storage also allows them to be used from Este, instead of needing to carry them with you when trying to mix & match for a new look. Premium experience bonuses are godsend for all my leveling needs, and so are the extra crafting slots until my account has gathered enough item rechargers.