I don't see the sense in releasing a demo of the old version personally, it doesn't make sense to promote the game with something that is buggers and just 'okay' only the hardcore fans are going to know what version of the game its running, the general consumer will just see it and think thats what the game will be like, and will never notice the difference in the future.
Weird.
I haven't played it yet, so I can't say whether or not I think it will be a system seller... but it's interesting to see the people who already own the system to say it is a system seller for them.








