While I agree in broad terms with what Pixies is saying, I think that there is market for art games. It's a much smaller market than the mainstream of course, but it's there for a developer to cater to and profit from. It's tiny, but it's also pretty much an untapped market without any competition. I think real, in depth studies of the gamer demographic are in order.
I think cinema is a good industry for the gaming industry to learn from due to its multifaceted structure. The fact that a huge chunk of the film industry is broad appeal, Hollywood blockbusters, hasn't stopped smaller arthouse films from across the world, from getting financed and from being successful. Considering there's an industry where products as diverse as Titanic, Airplane!, Weekend, Ben Hur, City of God, Raising Victor Vargas, or Persona can all be made, and be commercially successful, I can't see why games as industry can't have as broad a range as any other cultural endeavour.
Linkin' Park can live alongside John Cage.