I can't tell if you're trying to be funny or serious (I'm leaning towards funny, this is
/. after all. .
I don't care how great a photo you see of a work of art, it in no way is equal that work in person. Take this image of Richard III
In person, this painting is truly stunning, the detail is absolutely beyond belief. However to see it require looking both closely and from a distance. I don't know of any photographic technique that can capture the level of detail, the changing perspective, and colors of a true masterpiece. I say this a photographer who has tried to capture some art on film, and never been successful (though this could say more about my skill as a photographer, than the challenges of this technique).
And lastly, there is something about a museum that is sacred (it does derive from "temple of the muses" after all.) The space is holy, a shrine to Man's limitless potential and ability, as well his infinite inspiration found in the wonders of the Universe.