Why wallpaper on a ceiling? Frankly wallpaper usually holds up better than paint, plus you get a decorative option that paint just can't provide. And one thing I like about hanging wallpaper on ceilings is that I don't get paint drips on my face (or in my ear, or all the other places I find it at the end of the day). Check out this video and see what I mean.
Now, I don't expect to find that on any of my jobs, because I got a much later start in wallpaper than Whitey did. But I also expect that the wallpaper (and vinyl) that we install now could probably outlive me, no matter where it's hung.
Yes, we're licensed painting contractors, but our real specialties are wallpaper and vinyl wall covering. Look around - you'll find there are very few companies in Whatcom County that do this.