The exhibit's stated purpose is to show the evolution of video games as an artistic medium, focusing on impressive visual effects and the creative use of new technologies, so it makes little sense to omit the first CD system (both new tech. and providing for improved tunes and more art); even worse is them ignoring arcades, which were the only games pushing the graphical envelope early on. I could be a simplistic moron and say "they don't have room for everything!", but then I'd have to explain why they managed to find room for a bunch of watered down console ports of computer and arcade games that did nothing to advance the art form. Like I said before, this exhibit definitely missed their stated aim, but they hit "a US history of popular video games" almost dead on.