Maybe something's changed...but not that long ago the 120HZ only pertained to LCD TVs...as there can be some motion blurring without it (really shows up for Sports)... The 120HZ feature resolves one of the few cons of an LCD TV. It's not a gimmick it truly makes a difference!
That being said...Plasmas have come a long way...and can really be an excellent value....inch for inch, less expensive than a comparable quality LCD...
In my opinion...the biggest factor in choosing between an Plasma and an LCD...is the ambient light...if it's a bright room with windows...get an LCD. My TV room is in the basement...and plasma works spectacularly.
That being said...Plasmas have come a long way...and can really be an excellent value....inch for inch, less expensive than a comparable quality LCD...
In my opinion...the biggest factor in choosing between an Plasma and an LCD...is the ambient light...if it's a bright room with windows...get an LCD. My TV room is in the basement...and plasma works spectacularly.