I recently took a resolution downgrade to get a vg248qe for the 120hz with lightboost. See here: http://www.blurbusters.com/zero-motion-blur/lightboost/

If you ever have a chance to play with a monitor at 120hz, especially with lightboost, it's so obvious that you wouldn't feel the need to have a double-blind test. If you're not playing games, it's most noticeable when scrolling down a page in your browser or moving the mouse.