I got my 87 last weekend at CCity. They don't even have them on the floor. I had to ask for one... they had 3 in stock. Having owned a 2006 67" Samsung DLP I was anxious to see what the differences were. Bottom line... not much. Colors may be a little deeper and it seems to handle fast motion better (think football...). I calibrate my sets as soon as I get them using the Video Essentials DVD. The unit came with the Brightness jacked to 100% but the rest of the setting were at least in the ballpark. Looked better after I tweaked it to what Video Essentials recommends.
The thing I was leery about was Samsung's own website where they list the specs... They said it didn't even have Y Pb R jacks or whatever they are called. It does... I also like the fact that it has 3 HDMI one of which is "HDMI/DVI", ostensibly for plugging a computer in. It also has the standard VGA input just like it's larger cousin. All in all it's a very nice TV. Earth shattering... no. An incremental improvement... yes. I just like the fact that there is no bulb to mess with in the future. These things should last pretty much forever as far as I can tell unless the DLP chip or an LED goes south, which is pretty remote. Hmmm... what else. I don't think the built in speakers are as good as my old 67" unit. The are now "hidden".... Yeah, so is the sound. But I don't use it anyway since I have a JVC 802B AV amp/processor and a 7.1 speaker set. Which sounds awesome by the way. My "man cave" is a former under house garage that has been converted, at no small expense I might add, into a rather large video room. Basically 3 sides of the room are insulated drywall over concrete.. the only interior wall has a double layer (compacted) of fiberglass insulation with the ceiling stuffed with 12". You can hear a pin drop from across the room it's so quiet.
The only real "problem" I've encountered so far is with sound issues. In particular when I do a low frequency sound sweep with the Video Essentials DVD I found that there was a 96 Hz buzz in the room. Real prominent... searched around and guess what? It's the TV itself. Since it's essentially just a big box full of air anyway... it eventually resonates due to the large flat areas. I'm going to try strategically placing some extra RoadKill sound deadener (basically sitcky backed sheets of lead...) and see if I can get it to go away. Kinda weird, but these things happen and you jsut have to deal with it.
Any question, feel free.