Here is the same image from the Epson Home Cinema 1080 UB, which for the last year, has been the black level champ of the under $3,000 (US) projectors. You can appreciate the Epson's advantage in black levels, with blacker blacks and higher contrast, for a more dynamic looking image:
The two images above, are just the kind of scene where a projector with exceptional black levels has a real advantage over one that's merely average. I do believe you can appreciate how much more dynamic the Epson looks. Below is, again, the same image from the recent review of the direct competition to the PLV-Z700, and that's Mitsubishi's HC5500 - it is a little darker than the other two, yet the Epson still has the advantage:
Below are images from Space Cowboys, of Clint Eastwood in a very dark room, lit only by a small table lamp.