Blue dogs are prone to skin problems. At least I see a lot of post about this around PBC. Skin problems ... always seems to be a blue dog ... sometimes a white dog. Don't shop for color. For a dog that's going to be with you for the next 12-20 (optimistic LOL) years, color should be the last thing to worry about. I would want to know the sire and dams temperament if buying a pup and interact for a period of time with a dog I think I like, if acquiring a young dog. Color be damned LOL.