Two christmases, why not?

Ever since I learned that Orthodox Christians celebrate Christmas on the evening of January 6th and the day of the 7th, I've thought, "Why not?" We Protestant and Catholic Christians call that day, Epiphany or the arrival of the wise men. We really don't know what day or even time of the year Jesus was born. The Emperor turned the worship of the Sun God into the day of celebrating Jesus' birth, primarily for political purposes. Perhaps the Orthodox are more correct. I say, what difference does it make as long as we celebrate the greatest of all miracles, which is the Incarnation. So, why not celebrate two Christmases.