Hey all, was just checking in, as it's been quite some time since I last posted... I'm up to 2000 hours on my MWave replacement lamp and about 6000 total hours on my projector, and it's going every bit as strong since the day I bought it. I've noticed less dimming on the MWave replacement than on my original, so I haven't had to recalibrate it as much either. Personally, at this rate, I've stopped looking at replacements. The reliability and image quality from the Pro8100 have been fantastic. In this day of throw away electronics, my Pro8100 still reigns as my center piece and the best single purchase I've ever made in AV gear!