Do you know that black dining sets are as marketable as white dining sets? It is a fact, though realistically such a color-based kind of dining sets can hardly be as preferable as unpainted wood dining room sets.
What about the most preferable color for dining room sets anyway? There are a few. And, black is one of them. That is one of the reasons why black dining room sets are almost at any furniture store.
Painting white or black or purple or another color is easy. But how much does painting actually change a dining room set? It DOES change so much. The style is changed because of the color change. So is the nuance it can bring. Nuance, the term that cannot be separated from interior design, is indeed one of the purposes of why people in common choose to provide their dining rooms with dining sets that represent some particular color schemes.