im not keen on samsungs reliability had 2 bad experiences with sets that we place in rooms
googled and samsung reliability issues dont seem to be unique
this is based on sets from a few years ago though maybe that's changed
if size isn't a major issue i'd go down to 60" or even 55" and grab a sony instead i think there are still some hx750/850 sets around with superior pq even the 650 is supposed to have better pq than that samsung set
if you would like a larger set and lower price go with Panasonic over samsung
read some reviews and comparisons at
AVS | Home Theater Discussions And Reviews cnet etc