You go to a museum, and see an ugly piece of art, but if you knew the story behind it, it's beautiful.
That is the dumbest analogy I have ever heard.
You go to a museum to appreciate art. Art is supposed to be good to be considered art. For art like paintings and drawings, it's supposed to look good to be considered art. You're basically saying I can draw a few stick figures but if the story behind it was about a tough time in my life, then it's beautiful? Drawn, painted, or sculpted art is completely based around being good looking. It's not comparable to video games. By your same standards, I could just fart into a microphone for two minutes, put out an album with these flatulent noises, and then say "Well I made this album because daddy didn't love me and mommy didn't pay attention to me and it expresses my innermost feelings", and it'll be considered "beautiful". It's not, it's just goddamn fart noises.
You know what piece of art is good if it has a good story behind it? Books. Because it is a story.
Sorry for ranting on but I just had to point out how completely irrelevant your analogy was and how it is completely false.
Also, I state this every time, but there's no compromise for good graphics and good games. They often go hand in hand. Additionally, do realize that Nintendo does their best to produce the best looking games on their consoles, so I guess they really do care about graphics.
I'd also like to point out that this argument only came to be when the Wii had shit graphical power and every Nintendo fanboy said "Oh, well I'm a real gamer and care about games, not graphics, so that's why the Wii is so good!" If the Wii came out and it beat the Xbox 360 and PS3 then they would be on their high horse saying "Look how good looking our games are, inferior non-Nintendo gamers!" Hell, this was the case when the Wii U was announced and every fan loved nothing more than to tote how their beloved Nintendo produced a console with better graphics than the competition... Even though the competition is 6-7 years old.
I really think we need to amend Darwin's theory of evolution, since apparently Nintendo diehards can adapt to whatever Nintendo throws at them within minutes of hearing about it. It takes millions of years to evolve? Bullshit, Darwin, bullshit.