Have you seen the yamakasi 300 sparta or leonidas?
Yes, I have a 120 IPS.
They all suck, it is in the IPS technology. Awesome picture but you get a ton of blur at high frame rates. I was going to change my PCBs in my CrossOvers before buying the Yamakasi OC. Good luck I didn't because the motion blur isn't terrible just you "notice" it.. you know?
Sort of like screen tearing, it isn't bad until you played a game for a while.