Too bad I just wrapped up filming the Selvadorada episodes of my machinima series. Could have used the ceiling textures a week ago, then I wouldn't have had to go out of my way to keep the perfectly clean white ceiling out of the shots in my custom ancient temple. :D
I haven't played the game since the update, but I'm definitely going to use this feature a lot. The white ceiling is fine for most modern buildings and even some of the not so modern ones, but special houses like the Goth mansion and the Granite Falls cabins require something a little more stylish.