Regardless of what type of bulb (Incandescent, Compact Fluorescent, LED, HID) you choose for your home or business, color temperature (measured in Kelvin - K) plays a part.
So much of color temperature comes down to a personal preference, but the color of the light you choose can greatly affect the feel and mood of the space you are illuminating.
Many commercial spaces choose to use cool white (5000K and 4100K) as a theme as it is somewhat stimulating and invigorating, while residential spaces typically utilize warm white (3500K and 2700K) to keep the mood relaxed and calming. Daylight (6500K) is a true representation of the sun at high noon.