UF6450 isn't even a "real" 4K if that matters and isn't chroma 4:4:4.
Youtube samsung's pr video "What is true 4K" or go to rtings and look at the 6400 to 6800 LG line.
ALso stick here if you want a good deal. IMO much better site for tv deals compared to avs or here in ocn:
If you want to insist with the 6450, it's been $ 515 at several walmarts, just need to check your walmart brickseek/local walmart...