We would like to cover up wall paper instead of taken it down.
Wall paper can be painted over, check with a paint store about the correct product to use.
The downside is--if you ever wish to remove it in the future it will be VERY difficult to do.
We bought a house where a couple of the rooms had that done. Being older we just had a new coat of paint put over it, doesn't look to bad.
Don't paint it. It is very wicked to get off after it has been painted. I had to do this once, NEVER again....
You can also paper over wallpaper if it's in good condition. If the new paper is light weight and a light color, it might be a good idea to prep the wall with a wall paper liner. It was hide flaws and prevent colors for showing through. There are also plain white wallpapers that are embossed with a pattern. They are generally used to be painted over and look really inviting. Google embossed wallpaper for samples. Good luck! Post pictures.