Take heart. You are not alone my friend. I have numerous black shell and black calf models**, shoes and boots - JL, EG, Alden, AE, C&J, etc. - many of which work well for professional business dress, and many of which work well in casual settings.
** As well as numerous shell and calf models in numerous other colors from numerous makers..
Many times perspective, one's job, and size of collection are lost when the subject of black shoes/suits/slacks is discussed. Be not dismayed.