This is the most recent update of Brickapolis. I have been buying a great deal of lego to add to my town. I have once again been striving for a more metropolitian look. The photos in this set are a great deal better that previous and involve closeups. The reason for the use of the grey baseplates vs. regular road plates is simply that the grey baseplates give more character to the town and allow for variable road widths. The grey baseplates also save on space.