My Sony 40 lcd hasnt been soo great light continuosly dimming at any giving moment.. I was told it was a possible light processing problem... o I may upgrade and my store was telling me about a 50in plasma by LG that has 600hz refresh rate and 20000 - 1 contrast.. anyone think this is worth it? I havent been a fan of plasma's but i dunno is it worth the upgrade from an LCD...