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Question: Problems with LG plasmas?

I've had my LCG LG tv for almost 4 years now. Somewhere in the mid-high 20". It's awesome.. I love it.. It's never had a single problem.. the picture is still competitive with tv's coming out right now. One problem: time for a bigger tv. I found this one available near me (LG 42PQ30), brand new, for only $599. I want a 42" LG.. is this a good deal? It's discontinued by LG so that concerns me.. but so is my current tv and it's great.