I have been reading about the new console systems that are planned to come out in the next year or so. The XBox 360 is already have problems in sales -- but what do you expect when you have a machine that costs $500 and no "must-have" game to go along with it? The biggest problem with XBox 360 is there's no game out right now that makes you think "Boy, that is a really cool game -- I should get an XBox 360!".
But on that note, there really is no game like that on the regular XBox either. What game on XBox is so great that you'd buy an XBox for? I can't think of any.
For Playstation and Playstation 2 (PSX and PS2), these systems are attractive because Playstation has almost a monopoly on Squaresoft and Square Enix games -- RPG games such as the Final Fantasy Series are top-sellers, there are the racing games like the Gran Turismo series. I just read that PS3 was going to cost $750US when it comes out. Who in their right mind would $750 for a gaming system?
Nintendo also has their "must-have" games. They have sole-rights to all Mario games, and then there's the Pokemon games, Zelda and Metriod Prime. Nintendo doesn't make nearly as much in sales as Microsoft or Sony, but they have a rabid following enough to do well. In Japan, Nintendo is still way more popular than Microsoft's XBox.
I guess it kinda makes you wonder -- when is Microsoft going to figure out that no matter how great the hardware, it's the games that make the difference?