This really isn't complicated. When you live in a place, paint it whatever color *you* like.
When you come to sell, repaint it off-white (pale beige). The place will sell faster and you'll get a better price. Beige is "warmer" than pure white, which looks "cold". People want to feel warm and cozy in their homes. This is all well understood by good builders and realtors. They have turned into science -- no guesswork required.
Aside from the color itself, a *fresh* coat of paint will always help sell a home. Maybe buyers shouldn't be so superficial but the fact is... they are.