You're comparing a new LCD monitor model with an old one. The VP171b was released in Apr 2003 while the L565 has been around for more than 1 year. The VP171b has a video response time of 16ms, and that of the L565 is 30ms. Also, the VP171b offers more features than the L565, such as direct compatibility with the HDTV high-scan 720p format, pivot/height adjustability and ultra-slim bezel design.