As much as I like a black leather chair, I find that a grey leather chair adds a different feel to a room, be it a dining room or living room. I find that the grey leather brightens up the room a bit and is also quite inviting when used in the waiting room of an office. Of course, at the end of the day it all comes down to personal taste, but at least we all have the option to choose alternative colors or to stick with the classics.
Grey leather chair:
Grey leather chair pictured: Amelia Bicast Leather Dining Chair in Grey by Safavieh.