Useful diplomas, amirite?

From the link: "The artwork is a cascading installation of 2,600 real college diplomas, which are roughly valued at a little over $180,000 each — the average cost of four-year college education in the U.S. "
 
This is sensationalized nonsense.  The $180,000 figure for a 4-year college diploma is only true for private colleges.  State colleges are MUCH less, maybe one-half to one-quarter of that figure, as regards financial costs to the student (though not, of course, to the taxpayers, but that's another matter).