Color Choice

I'm having a first-world problem - I purchased the Natural Titanium. Haven't opened it yet. Now, I'm thinking I want to swap for the Black Titanium. I'm definitely a case-on-at-all-times person so it's really only the camera that will be showing. But I think I might like to see the black for the next however many years I keep this phone instead of the light grey color. What are everyone's thoughts on the colors?