Having a bath tub in the house is not always part of the plan. Oftentimes you are limited by additional expenses during the time you are having your own house built. Other times, you do not actually own your house. You are just renting and it happens that there is no bath tub installed. Since location matters more than amenities, you decided to take the place even without the tub.
Why not get your tub now? You can have one of those clawfoot tubs available which is just like having another basin in your bathroom. Less hassle, if not no hassle at all.