That's for a feature wall only e.g. TV console area. You can't be doing that for all walls in a houses like is done in lecture hall or hotel banquet hall.

Wallpaper looks good initially but the reality is that it does not last in our type of climate. The edges peels off sooner or later. Just ask any houseowner who has experience using wallpaper.

You use wall tiles for bathroom and kitchen only. Tiles in the living room would be wierd.

Painting is still the most practical and economical. Some people use textured finish (spray acrylic) which is more expensive.
Better save the money to buy some nice paintings to decorate and liven up the walls.