Is this a good 3D HDTV for ,500? It's not cheap, but compared to other TV's with like specs it's not a bad price either. Any reason on why I shouldn't go for this unit? It has 4.3 star rating on Amazon out of 385 reviews which seems pretty good to me. it also has the ability to manually adjust the refresh rate which is nice option although I'm not sure why anyone would adjust it down.