I also have a tan and a dark brown medium Edith, I brought the darker 1st and used it so much I brought a 2nd one.So I ended up getting both the black and the brown medium Edith because I never could pick between them and they were on sale. I don't normally pick up two of the same bag, let alone in the same season, but I've always loved the Edith and I worry it's going away.
Also I bought the boots in both colors, so I wanted bags to match.