It is like a tattoo: Do not think too much about the first or third tattoo/domain. the tenth will give you an feeling and the 15th you feel completed. Just start with one and as soon as you have control over your first digital cert endpoint, you can forward easy from it to any other domain in you control and depricating out unwanted domains over years without problems. It is a road not the destination to choosen your first domain. Hit the Road Riddick and don’t you come back no more.