Why do they need to be sustainable as a business..? The best museums are a service that the public funds (or not). Side note: the museums in America generally suck and are just capitalist activity centers for kids, in my experience. You can't manufacture a good museum's exhibits. I don't think many Americans even know what a museum is, based on their reviews of some I've been to.
Museums are worthwhile to fund instead of throwing them to the wolves of the private sector.
Museums are worthwhile to fund instead of throwing them to the wolves of the private sector.