Take a fast racing game, for example... a CRT will keep all the details clear as you zoom by. LCD pixels simply can't transition on and off fast enough to keep up with CRT phosphors being hit by an electron beam, producing LCD motion blur. CRTs also soften the image somewhat, lessening the need for higher resolutions and anti-aliasing. If super crisp, extremely fine, text viewing is desired, then a 4K LCD is much better. But for fast moving images (like those in many games), CRT still has significant advantages. My main TV is a Panasonic plasma, and it has good motion resolution as well, much better than most LCDs.