I bought this TV when it first showed up at Costco. I was one of the original Samsung HLM-507w customers too. I HATE IT that DLP has all but faded away.....Tonight I finally had my DLP set fail. I went to my coat closet and pulled out the box of replacement parts I bought in June 2008! I pulled out the replacement bulb, and in 10 minutes my tv was back to perfect again. Incredible. I have to admit, I had been looking at the new TVs and thinking my Samsung DLP didn't look as good as I remember it. Uh, it does now! Bright and SHARP. Incredible picture.
By the way, my original HLM507 was sold to my best friend from high school who still has it, and it is still working perfectly. I changed the bulb once when I had it, and when I sold it to him I gave him the box with a spare bulb/color wheel/ballast and he has not had to use any of them.
BTW, I learned about each of these TVs (and ALL my AV gear) here on AVS forum. Thanks as always, guys.