There's no point in spending money on a room just to decorate it without considering how it's going to function and if it's going to need the need of the person using the space.
You wouldn't spend the money for a high quality stunning kitchen with multiple seating if you weren't interested in cooking or entertaining!
Each room needs a sense of functionality to make it worth living in! That should be a major factor before you even decide to decorate. Make sure what you pick is going to serve your needs.
Do you decorate with purpose?