I would like to offer some information on the 9000 and the 10000. I get my information directly from the source and that means "people who know" at BenQ. They have intimate knowledge of the product namely because they designed it. Anyway, I also have worked closely with BenQ on the 8720. I have not really worked with them on the W10000 because it did not need much input from "the field", meaning it was very good from the start.
Now on the the differences of the 2 PJs. There is one difference and only one difference. The W9000 is a Darkchip 2 PJ and the W10000 is a Darkchip 3 PJ. There are no differences in the sizes of the chips, lenses, iris, fans, processing, cases, power cords, boxes, manuals, and on and on. Thats it, end of story.
Now if you want to draw any conclusions to performance of one vs the other from this you may. There is not a great deal of performance difference out of the box except for a 25-30% drop in contrast. I will say that anyone that gets either PJ is getting a great PJ for the money. There are better but cost much more. Now from a calibration standpoint, the W9000/10000 is very good and this is the main area I have noticed BenQ has improved these units over the 8720. A good calibrator, as myself
, can really dig in and make this unit shine to the level of a Sharp or Marantz. The new BenQ service menu adjustments are so much more fine and allow the proper person to really dial it in. For instance, my personal unit has 3 different Gamma curves set up and saved. I can also dial in the Color Management for SD and HD color gamuts. Not to mention, very good grayscale tracking. I have also done some work with the Color Wheel delay and sharpness to really bring out the pop in the image. I have measured On/Off CR at nearly 4500:1 with the iris closed completely and the unit fully calibrated. I run my iris at 32 steps closed and get just under 3500:1 On/Off with an amazing 660:1 Ansi. Not quite Sharp numbers but very very good for a PJ costing a good bit less.
Anyway, I just wanted to chime in as I was mentioning this thread to a BenQ person today and I told them I would try to clear up any confusion.