All the Hz wars is simply trying to sell the "next big thing". I've ever heard that Sony is getting ready to unleash 200Hz.

As dkl and LeMans stated, 120 Hz is overrated, especially since Blueray is 24Hz, if I'm not mistaken. So it's definitely not worth it to pay for 120Hz. It's a gimmick.
Thanks for the vote of confidence on the banding LeMans. I've read a ton about it on AVS but you know how it is there. Lots of crap and one or two gems in the lot.