In the Netherlands many of the musea are semi public, and especially the Rijks get a lot of tax money and also a lot of donations. The Rijksmusem is actually the national museum, Rijk is another word for State or maybe closer to empire. It's entire collection is the heritage of the Dutch state. So in this case it's not a bad argument to make that it shouldn't be hidden in a basement but shared with the public. Although since the nineties the Rijks is officially an independent foundation.