Punchcard Art

The above image is from an exhibit of art made on unpunched punchcards from 1965, Do Not Fold, Bend, Spindle or Mutilate: Computer Punch Card Art - Virtual Exhibition. Recently on Boingboing there was an article on the worth of old and sometimes rare things, The Trough of No Value, that suggests objects travel through. After looking at this I wonder if there are more boxes of unused punch cards out there. Will there be enough examples left for future historians or archeologtists of mid twenith century computers to study. Will there be preserved data centres in the same way there are preserved railway lines where hobbyists work hard to recreate the technology of a vanished era.