There are, of course some improvements in the W10000 over the PE-8720, including the fact that the W10000 home theater projector is ISF Certified.
Quicktip: ISF (Imaging Science Foundation) is the organization of professional calibrators. Understand right off, that being ISF Certified doesn't mean the projector has been fully calibrated by a professional before you get it. Rather, it means that within the service menus (places where normal folks aren't allowed to go), all the tools and options are there for a professional to maximize the projector's performance. I believe that the certification also means that the projector's parameters are such that together, the projector and the calibrator can end up with ideal settings for your environment. (A true professional calibration is done at your home, so that the settings take into consideration, your room, screen type, wall coloring, etc.)
But, back to the W10000. To the consumer, this 1080p behaves almost exactly like the PE-8720, right down to the menus.
There is one other change of note, and that relates to the zoom lens and throw distance. The W10000 has less zoom range (for placement flexibility) than the PE-8720, which I will cover later.
This is the third of the new "affordable" (selling from under $4000 to under $7000) 1080p resolution home theater projectors to be reviewed. We have previously reviewed the Panasonic PT-AE1000U (the lowest cost) and the Mitsubishi HC5000, both LCD powered. Our next review is Optoma's HD81 home theater projector, which like the W10000, uses a 1080p Darkchip3 DLP, and has a MAP price about a thousand dollars more than the W10000.
Early next year we hope to review both the Sony Pearl VW50, and the forthcoming JVC LCOS projector (due to ship in February/March timeframe at about the same price as the Optoma HD81). Also early next year look for our review of the $10,000 SIM2 single chip 1080p home theater projector. That SIM2, will be the least expensive of the 3 1080p models from SIM2, recognized as a high end line - their 3 chip 1080p, lists for $49,995! But I digress.