I have the 5076s, and even though it has bowing, I still love the tv. IMHO, when calibrated it outshines the PQ of damn near anything in the price range (including the Sony A2020, I calibrated them back to back and compared for nearly 30 minutes at a CC). Yeah, the bowing does suck, but much of the time it's not noticeable unless you look for it. The one time it pops up is when watching 2.35:1 content. Plus, there are several advantages to this set compared to the competition. It's super slim, and being so I was able to place my tv on a fireplace stoop (don't worry, the fireplace doesn't work :-P ), get rid of my big entertainment center, and really open up my room. I also have a 360, and got it before the elite came out... BUT sammy's allow 1080p over component (and are the only manufacturer to do so to my knowledge). It's got tons of inputs, and for heavens sake, look at what you get for the price! 50" 1080p for about 1500 ain't too shabby if you ask me, even with a few problems.
For the warranty, there was no way in hell I was paying what CC wanted. I registered with Samsung to get an extra 3 months, and bought a service plan from Tapeworks Texas. I can certainly understand people on here having tech's come out and work on their tv, and exchange them 3 or 4 times. But to me personally, it's not worth the hassle to go through all that to get rid of a little bowing. Down the line, maybe 3-6 months, I'll call and get them to fix it. Hopefully by then they'll have a fix, or start putting in firmer screens.
I know by reading these threads, you'd think it's a horrible tv. But it really isn't, it's got one problem. If you researched any product on AVS, you'd be hard pressed to find one that doesn't have any problems or complaints, that's what this place is for. If you only bought consumer electronics that didn't have any problems, you probably wouldn't have anything at all. That's my input to prospective buyers. If you can deal with this bowing problem (which isn't the end of the world) for a while, until they HOPEFULLY develop a repair technique, or when new sets don't exhibit the problem, go for it. I know I can't stop playing games and watching HD-DVDs on mine.