I only like white, anyway... The house I'm in now had a bright pink kitchen when I moved in - that was the first thing I changed! Absolutely horrible!
White (or cream, if you must) is easier to paint over with the colour of their choice, anyway. I never understand why people use dark colours for their walls (it's a British thing, I know...) - it makes the rooms much darker and consequently costs more in artificial lighting. (Plus the paints are more expensive, too!)