Well I went for the 7700, but I auditioned a couple of DLP pjs first. I don't think anyone's demoing the 7700s.
I see some RBE but pretty rarely, even if I'm looking for it. You need to check it out for yourself though, watch a scene with large jet-black and brilliant-white areas side-by-side and move your eyes around the screen rapidly. When I do that I see a strong RBE, but in normal viewing I rarely do.
There are some scenes in Men In Black I and II with the dark suits against the white shirts, especially the night scenes, that show up RBE very well.
RBE certainly hasn't been an issue, the only headaches I've had are from moving my eyes around the screen rapidly trying to see it
Anyway, definitely go audition a DLP, and not just a quick look. Try watching a scene like I mentioned for around half-an-hour. If you see the RBE it's not the end of the world, I saw it and still bought it, and it doesn't bother me.
I think the 7700 is fantastic, but a guy at work has a Z3 and thinks
that's fantastic too.
A big advantage of the Z3, at least for some, is that you can offset the image a long way both horizontally and vertically, which gives more options for placement of the pj. The 7700 doesn't have that.
Neither of them has great zooms, I'd like a much greater zoom range on my 7700. It'd also be nice if it auto-detected the aspect ratio of the input signal, like my TV does, and adjusted itself accordingly. I don't know if any pjs do that though.
And it's not as quiet as I thought it'd be, the warm weather may be a factor in that as the fans have to run faster.
They're the only quibbles I can think of though, so I must like it