There's very little that can go wrong with a DLP set. There's a one lamp (about $200) that supposedly needs to be replaced every several years, but mine is over 2 years old and is showing no sign of losing brightness and it's on 40-50 hours weekly.
What does DLP mean and does it have a tube?
They told me it would cost between 2,000 to 3,000 to fix it. Now is that crazy or what?
Careful if you buy a Samsung DLP. I have one (HLS6187W) I bought a little over a year ago, and many of Samsung’s larger DLP models have an issue where the light tunnel collapses, rendering part of the image dark (not blank — you can still see the image if you get close, it’s just not illuminated). AVSForum has a thread with 1500 posts of people with the same issue, and I personally am waiting for BestBuy to come out next week to repair mine. Other than that, I really like my DLP — saved me a bundle of money for the size (61”) compared to flat display technology.