I went with the black one. Sure the white one hides smudges and scratches, but I just prefer the black.
I was also skeptical about buying the white because the color is bright and I'm not sure if it would get dirty over time.
Being a guy, I'd always prefer the darker colors to the light, but I know some girls prefer black to white-guys vice versa.
So anyway, I returned my 8GB black iPhone 3G for the 16GB black iPhone 3G.
I paid $140 for the difference, including insurance, but it was well worth it.
Money shouldn't be a huge issue in our lives.
Now I'm happy because I can fit movies on my iPhone. 🙂