An excerpt from an article about looking at art at the Louvre, but can be applied to pretty much any museum setting:

"...[T]ourists now wander through museums, seeking to fulfill their lifetime’s art history requirement in a day, wondering whether it may now be the quantity of material they pass by rather than the quality of concentration they bring to what few things they choose to focus upon that determines whether they have “done” the Louvre. It’s self-improvement on the fly."

view it all here.