Well I saw the 65831 set on display at the UE in Tempe AZ and I have to say the set is unimpressive as far as the looks of the cabinet are concerned. It had a high glass black bezel which I like and would have matched my Definitive Tech speakers nicely, but over the speakers on the set was a thin cloth similar to what would be over a pair of stereo speakers, this might have looked good if the cloth was dark black in color, but it was a medium gray and really distracting, actually cheapened the look of the set. As for the PQ I have been looking and actually after viewing the 65831 in person have purchased the 65732, this is because I saw no noticeable difference in PQ, though I do admit I didn't see them side by side. I know in the other thread the speculated that Mitsu was using a better screen for the 831 series, this is incorrect as confirmed by reps at showcase, UE and Fry's, plus showcase showed me the product breakdown pamphlet provided by Mitsu and the advantages of the 831 Diamond did not mention a better screen or even seem to add up to the 500$ difference. In my case it would have been 1200$ difference as Fry's really gave me a smoking deal on the 65732, though the in home test will determine if I keep the set as I was not even considering DLP until I saw the new Mitsu sets in action.