You could pay $118 on Amazon for the Metropolitan Museum of Art’s catalog The Art of Illumination: The Limbourg Brothers and the Belles Heures of Jean de France, Duc de Berry. Or you could pay $0 to download it at MetPublications, the site offering «five decades of Met Museum publications on art history available to read, download, and/or search for free.»
If that strikes you as an obvious choice, prepare to spend some serious time browsing MetPublications’ collection of free art books and catalogs.
So have a look at MetPublications’ current collection and you’ll find you now have unlimited access to such lush as well as artistically, culturally, and historically varied volumes as African Ivories, Chess: East and West, Past and Present; Modern Design in The Metropolitan Museum of Art, 1890–1990; Vincent Van Gogh: The Drawings; French Art Deco; or even a guide to the museum itself(vintage 1972).
Since I haven’t yet turned to art collection — I suppose you need money for that — these books don’t necessarily make me covet the vast sweep of artworks they depict and contextualize. But they do make me wish for something even less probable: a time machine so I could go back and see all these exhibits firsthand.