I love wallpaper.....or at least I used to. Remember back in the "Good Ol' Days" (70's and 80's) when wallpaper had so much glue that it spewed to the floor in great globby puddles? Yes, those puddles were a pain in the butt, requiring careful squeegeeing, drop-sheets and much mopping up, but at least the darn wallpaper stuck when you were through with it.
Well, for whatever reason, manufacturers of wallpaper have gotten more and more stingy with the glue to the point now where wallpaper is best used to wrap gifts or line shelves. Certainly no one in their right mind would attempt to actually stick it to a wall.