As much as I'd love to have a mansion or something on the Imperial homeworld, it's just more practical to add customization to player ships. After we get done decorating and customizing, why would you head home to a planet when your ship has everything you need? Remember folks, SWG housing was both fun to customize and practical. In tor, you don't need crafting machines, you don't need an excessive amount of storage space, you don't need to setup vendors to sell your wares and you don't need to sit through multiple 2-4 minute loading screens.