I did get the extended warranty though it goes against my usual habits. I think that I was probably more cautious due to the relatively new nature of the technology and the cost. I felt I could put some of my savings back into the warranty. The panasonic speakers I also got were mighty expensive at $500.
Now I think I should have wired my center channel to the TV and run 4.1 channel from the processor which is how I usually listen anyway and saved the money.