While I agree for the most part (in my life time), many of the technologies from Star Trek are being to show up in our every day lives. Advanced Palm Pilots, light memory storage, nanotechnology, scientists being able to freeze light, scientists being able to make light move faster than the speed of light (wrap your head around THAT one), antimatter being produced by CERN, and military railguns (whoops!........sorry, Quake's always on the mind

) all make SOME of the Star Trek techology a possibility.
In fact, MIT has created "the Cave." It's essentially a giant monitor/room that one wears a VR suit in and runs around in. The techies there even got it to run Quake 2 a while back. While it prolly won't be a reality all that soon, don't count some of the Trekkie stuff out just yet.