Black & Anthracite Citys

Which year's Anthracite you have? If it is 2007 Anthracite, I vote for keep the Anthracite since it is such a unique and stunning color; otherwise, keep the Black.
 
Although Black and Anthracite are similar there are very striking differences between the two shades. Today I had a sky blue nylon carrier bag in my Anthra Twiggy, to hold purchases from local shops. When I looked at it next to the Twiggy there was no way anybody would have thought my Bbag was black! So it certainly wouldn't be stupid to keep both bags!