As a first step, it is important to think about the amounts involved. Not only the price of the wallpaper or paint itself, but also all additional accessories and energy to be spent on it must be included in the total cost. Based on this, we know that painting usually requires applying several layers of paint to achieve the desired effect, while wallpapering requires only one layer. We mostly think that you don't need to call a professional for wall painting, we can do it ourselves, so we can come out cheaper in the end. However, this is not entirely the case, since comparing the work of a person who specializes in this field with the work of a less competent person, serious differences can be noticed. It is difficult to paint evenly, without streaks, in a word, beautifully, no matter how simple it may seem. Of course, it is better to call a specialist for wallpapering, but it takes less time, which means less labor fees.
When painting, we also have to think about the integrity of our furniture and floor, so it is a bit of a tedious task to wrap them stably so that accidental paint stains do not cause problems. When wallpapering, such a problem should not occur, since we mostly work with non-liquid materials. So wallpapering involves much less preparation and complications, and you don't have to suffer from the suffocating smell of paint for hours afterwards.
It is also necessary to take into account the service life of the wall cladding method. For higher quality, but therefore more expensive, paints, this time can be estimated at about 3-5 years, but for wallpapering we are talking about at least 10 years. Based on this, wall painting actually costs twice as much as wall covering with wallpaper, which is not a negligible factor.
Many wallpapers have the impressive function of being cleanable. This makes it possible to apply them to kitchens as well, as dirt accidentally placed on the wall can be removed from them. And for other rooms, they are advisable simply because they are much more decorative than walls painted in one color. We have more shades, materials and patterns at our disposal, so we can adapt them more easily to our personality.
If we haven't been able to decide based on these, we can even combine painting with wallpapering. We can separate the wall coverings with border strips, which turns out to be a very creative solution.