We've all been too busy watching our PJs to comment.
I only have 112-ish hours on the bulb, so I can't really comment on bulb life.
Nor can I really give any input on the sealed optics, although I haven't had any problems. Vaccumed the other day, not much dust was on the fans. BTW, I really like the open side-vent design of the Sharp due to those sealed optics...with all the air these three (quiet) fans pull through, there should never really be any cooling issues.
Anyway, I'm still loving the image. HDTV, DVDs and Xbox 360 all continue to shine, especially after I spent time with calibration.