Anon its not as simple as being proud of your game that would make you want to release a demo, the post from Infogrames is pretty clear why there will be no demo. They have never said that a demo would be released and they didn't do it for the first game (which sold a milion copies) Maybe you should read that thread and see what the reasons are. I don't like the reasons but I can see why.
How many times do people have to say that the developers of UT2K3 HAD NOTHING TO DO WITH Unreal 2 apart from an overseeing role. Legend, the creators of Wheel of Time (a pretty good game for its day) developed Unreal 2, Epic developed UT2K3 along with Digital Extremes. The response to a multiplayer only shooter (which I think is shit and was ruined) has no bearing on a single player game being developed by a different developer.
If you haven't heard anything about the features of the game then you obviously haven't looked and therefore cannot be interested so why the hell are you posting moron ? The engine is new and very pretty, but Legend seem to be really aiming to produce a 'complete' Single Player experience.
The gameplay movie wouldn't make me buy the game and it is nowhere a replacement for a demo. Reviews and hands-on previews will let people decide. Word of mouth etc will let the middle of the roaders/pirates/dickwads decide.
I seriously doubt that Unreal 2's sales are going to be affected by the lack of a demo. This is one of the biggest titles to be released this year, along with Doom43, Quake 9 and Duke Nukem Whatever and will sell regardless of demo or not. This isn't a little known game from some little developer in the middle of ButtFu*k Europe, its from one of the most respected developers around, like it or not.
Get your facts right stupid.