... in the basements and boiler rooms!

http://www.cnn.com/2004/EDUCATION/0...t.ap/index.html

Step 1: Schools buy art cheaply, and have art donated to them.

Step 2: The art gets taken down and put into storage when the walls are repainted.

Step 3: Some idiot decides not to put the art back up on the walls, because he/she doesn't think art is important.

Step 4: Years later, people find what is now 20 to 30 million dollars worth of art in closets and boiler rooms!