We use 3D display here at work all the time (pharmaceutical research). We have tested all TFT solutions until now, but none was satisfying. So people still use CRT screen with very high refresh rates. Yes, they are getting harder and harder to find, and they take a whole lot of room ...

120 MHz means that each eye actually sees a 60MHz display. A lot of people (including me) cannot stand that in the long term (say more than half an hour). So if you are interested by this technology, I would advise to try it during a significant amount of time, not just for two "wow that's cool" minutes.