Books and films aren't necessarily entertainment. I think the problem with "games" is that, whether or not it should, it automatically connotates entertainment, which again connotates something that is not intellectual or productive. This, of course, isn't the case - chess is a game, so are tennis and darts and those all exercise the mind and/or body. They don't exist simply to entertain and waste time.
I personally don't give a crap whether others see electronic gaming as a waste of time or whether they see it as having the potential to be artistic, but that perception does have an effect on the medium (I don't like to use the word "industry" but perhaps that word applies too). If the people who fund games have the idea that they are mindless and necessarily so, then the games they develop will always follow that trend. Which is why anything that tries to delve into the depths of the real potential of the medium isn't usually made by the "big guys", at least initially.
I personally don't give a crap whether others see electronic gaming as a waste of time or whether they see it as having the potential to be artistic, but that perception does have an effect on the medium (I don't like to use the word "industry" but perhaps that word applies too). If the people who fund games have the idea that they are mindless and necessarily so, then the games they develop will always follow that trend. Which is why anything that tries to delve into the depths of the real potential of the medium isn't usually made by the "big guys", at least initially.