I love the concept of building my own castle. Many interesting castles have been built, but it's a shame you can't use flooring or wallpaper in these castles! I certainly hope KI can correct this issue, flooring and wallpaper adds much needed character to castles.
I think they may do this eventually. But then there would be a "right" or "wrong" side of the item, then there would be MANY more blocks you would have to build, most likely.