Seriously, why go the roundabout way just to try to get a Black Amex? It would not change you as a person just because you have this card, (it might help pick up chicks though )

I had the Centurion now for almost a year. To be honest, it was quite exciting when I first got it with all the oohs and aahs when the check-out chicks see it. But now it is just another charge card in my wallet with good benefits.

If you are not offered the Black card with your normal spending pattern, you probably won't be able to utilise the benefits that comes with it even if you manage to get one.

Just stick with what you got and enjoy life and stop worring about the color of your credit card.