The greige looks great on you! I think you and catcat got some really nice ones. The greige I got from Barneys was an icky yellowish grey (lots of yellow tones) which I promptly returned.
I think if you are planning on keeping the greige then get a black later on as you already said. True it may be considered boring by some people but you will be able to use it with clothes that you can't use with the greige.