Is there difference in PQ between 34HF83 and the 34HF84? I can actually get this year's model the 34HF84 about $200 cheaper than last year's model. Any reason why? Is last year's model better? And anyone know if there is a difference between the 34HF84 and the 34HFX84 picture wise? I know the cinema series is bound have more features, better look/design but all I care about is PQ. I can get the 34HF84 at a decent price and I want to know if it's worth it to go for the 34HFX84. If the picture is the same I will go for the 34HF84, all I need is a nice image. Thanks.