But, then again, 120Hz TVs cost more, so a salesman would recommend them :D
(Just as an aside, I wouldn't buy a 120Hz TV/monitor for 3D - 3D seems to be going nowhere.)
At this point 120hz is not much more expensive. Having a faster refresh rate means your streamed (netflix, etc) content, blurays, and games look more lifelike, and you get a greater illusion of depth. This is not as dramatic on TVs smaller than 40", but the difference is still there. You notice a much bigger difference once you get the TV home and start watching it, showroom floors are just much too chaotic, noisy, and disorienting for your senses in most stores.
Outside of that, from most brands, 60hz means you are looking at their least fully featured, entry level wal-mart TV they offer*, upgrading to a TV that they actually care enough to make 120hz usually gets you a TV that is going to be better made, has a better engine under the hood, better range of color... pretty much a better TV in every way.
A *SMART* salesman would sell you the TV that is going to make you happy in the long run, so that you are more apt to buy from him/her again, instead of the most expensive thing they can ram down your throat :D
*32" is small enough that this is not always the case as in bigger TVs, 60hz is still considered acceptable at this size, and so you can still get good quality 60hz 32" tvs.
Edited by T R O U B L E, 19 July 2011 - 04:23 PM.