My character's inventory and my retainers' inventory, as well as their bazaars, are almost always maxed out because I hold onto and make a lot of things for crafting, as well as store things that my linkshell members can also use. Having the extra space will be a GODSEND for me.

Though, I do agree that having a housing option to store everything would be nice. It'd sure beat having to travel back and forth between two different market wards where you have your retainers set up. That, and perhaps you could craft your own storage space for extra room; for example, carpenter could make a dresser or chest, armorer could make a safe, etc.