Don't forget about what it does for movies, artwork and things that actually are in black and white. A bleak atmosphere, a classical nostalgia, a crisp clean beauty... an abrasive... cow... it's wonderful... I mean, I specifically got regular black and white fuzzy dice for my car because they're nondescript and don't remind you of anything except how cool they are.
But as far as colors go, it's not just the experience, it's the convenience! You know how much time it saves you when your car is the greenest freaking thing in the entire parking lot?