For years I've been trying to get my clients to use wallpaper, and every time I suggest it, I'm forced to have the same discussion with them.  They are always nervous about it being too busy, and they don't know if it would work in their space.  I don't know if it's the stigma from the wallpaper that was used in the 70's, or if they are nervous about having to take it down later on.  Either way, I'm going  to finally put an end to all of the wallpaper doubters out there!