Just spend an hour at BB looking at a 56A650, 2-61A750's, and a 65" Mits.
Also played around with some of the remote controlled picture adustments on the 61A750. One of the 61A750's was an open box "Manager's special" with a price of $1499. Otherwise, I think the price was $1999.
First set I noticed was the 56A650. It was NICE and BRIGHT...even to just past 45º off center. Very impressive. Sharp too.
The 61A750 definitely was neither as bright, sharp, nor as vibrant off angle.
I asked the guy how much time was spent tweaking the sets in general, and he was honest enough to say that "basically, we just uncart 'em out of the box, set the cable channel line-up, and put 'em on the display". "Some of 'em are pretty punchy out of the box, but that's the manufacturer's doing."
When I looked at the setting on the 61A750, the contrast was set to 100, the brightness to 45, and the sharpness was at around 50 or so. The rest of the color settings were all around 50 or thereabouts.
I brought the brightness up to around 65, the contrast down to about 85, and upped the sharpness a bit. Overall, there was a tiny bit of improvement but nothing stellar. I was still far more impressed by the plasmas (of which there were many), and even moreso by the non-glossy screen LCD's. Still for the money, I could get a mediocre 50" plasma, or a 61A750. Problem is, once you see the BIG screens, your heart tends to sink a bit after looking at the 50's and 52's.
What was REALLY a treat was watching a big 65 plasma set up in the Theatre Room. NIIIIIICE!!!