It depends what your definition of art is.
If you read the dictionary's definition, then yes; A lot of games can be described as art.
Art is as much about creativity as it is about making use of a skill and conveying an emotion or feeling.
I know many games that are enourmously immersive, made with mastery and creativity on technical as well as visual and auditive levels.
oxforddictionaries.com/definition/english/art
To me, skill is a necessary element amongst other to categorise something as being art. I can admire the skill that is needed to make something without having to like the end result.
Old paintings by the masters might have been propaganda etc, they might be old and dusty, but you can not deny that they are painted with enourmous skill and talent.
Even WW2 posters can be admired for their typography typical for the era.
As pointed out in previous posts, beauty is in the eye of the beholder.