If your space (physical and viewing) can handle the 65", then go with it; and you may want to consider the 65" 8000 series. I just installed the 65" 8000 series and it quite awesome, even the 3D features. With it I also got a Blu-ray (3D) DVD and a Samsung 2.1 Sound Bar w/wireless sub-woofer. Got some good deals Thanksgiving weekend.
I am going to buy one or the other. I really admire the aesthetics of the 8000, but have no idea how great a 65" could be.
What do you think I should buy? I watch a lot of tv, movies, and play video games.