Functionality is a basic requirement of a successfully designed residential interior. What ever that function is, it must be.
There are many instances where the expenditures for aspects of function present many choices. For examples: Some thing could be made of wood, stone, plastic, metal, or other materials or it could be custom made or mass produced of which each choice affects the final costs.
Some aspects to be considered in these situations are: What is the ambiance of the design and how will these choices affect it? What is the level of quality of the rest of the interior spaces and how do these choices affect that aspect? What are the personal preferences of the people who are to be using the spaces? When applicable, what are the images, status, quality, ambiance, et cetera desired by users of the space? What will be seen and what will not be seen and how important is such?
All of of these decisions will affect the final result as the ingredients and making and cooking affect the final appearance and taste of foods.
The best aesthetic results are those where all of the choices come together into a complete and pleasing whole.
Think in terms of longevity and not immediate situations for the best beneficial results.
Food for thought.