Michael Foster http://langspainting.com/wall.html
Now from a realtor perspective... I absolutely would consider buying a home with wallpaper in some rooms. In the true perspective of things.. if the home meets all of the other criteria, such as location, price, square footage, structural integrity.. etc.. wallpaper is cosmetic (assuming it does not cost you too much money, time and effort to remove) other things I mentiioned may be much more costly.
I see location and price and structurel integrity as major buying points and remain to be some of the most importantt factors in making decisions on home ownership. Some homeowners are turned off by wallpaper, but it is taste, perspective and a variety of other factors...Honestly, everybody's perspective is different, I do speak for the majority of buyers I have worked with in the 2012 year of home sales..
all the best,
Long and Foster
On the other hand wallpaper that's out of style or even very beautiful wallpaper when there's lots of it can make a house linger on the market. In real estate you're trying to appeal to the masses and the masses have signed on to the paint-is-the-only-way-to-go mantra.