Never saw one of these in the flesh. I imagine a lot of games would play horribly in there and you may have some compatibility/interacing issues with a PC. I also believe unique machines like this should be restored and preserved.
However, some games would be very cool in one of these, particularly things like fps's, flight games and even the good old beat em ups would have a cool presence, though to really benefit from the hologramatic effect it would be better if you could shut off 'layers' like on certain emulators (ZSNES etc.) to make it look as though the characters are really seperate from their background etc.