If your are kind of maniac, you should use CRT monitor, becouse these 25, 16 ,12... ms can cost your life ;)Imagine: you are playing some first person shooter game online (CS for example ):Server ping 50ms + your reaction time ~200ms + LCD LAG 25ms = 275msAnother player plays in the same server with CRT, so he has 25ms advantage.Normal human's reaction time is ~200ms, so if you want to compete another player you must react in 200-25=175ms. (I'm not talking about player skills here )If talking about 8ms LCD lag, I think it's ok for playing. But no more than 12ms!for offices and siple home user 25ms lag is no problem.If talking about energy savings and your health, choose LCD...