I'm an avid gamer and have owned many consoles in the past and present. Personally, I think it's way to early to bury any of the new-gen consoles. For now the Wii has my preference, but if the PS3 becomes more stable, cheaper and interesting games come out on it, I might buy one as well. Sony made some slip-ups but all will depend on the kind of games that will be released in the next 2 years. But that's just my opinion ...
Well for a start, developers are still gonna be making 2D games. Dreamcast, PS2, XBox and GameCube were totally overloaded with 2D Games, Marvel VS Capcom, Capcom VS SNK, Alien Hominid (is that how it's spellt?), Disgaea, the list goes on. It seems that 2D Games will never go away. Even if we've experienced 3D games before, we all still love to play our good old 2D games.
And there would be no need to make any 2D games for the PS3 or the XBox 360, because the Dreamcast, the PlayStation 2, the XBox and the GameCube can handle these 2D Graphics perfectly. Why anyone would want to ditch their old console for a PS3 to play games that look exactly the same let alone plays the same as it's predecessor, is completely beyond me.
Aside from that, I'm fed up of repeatedly having to buy new consoles. It's expensive, it's annoying, it takes up too much space in my room. So far I have a Sega Master System, Sega MegaDrive, Sega Saturn (which is now bust, dunno how it got bust though), Sega Dreamcast (2 even, one got bust so I brought another one), Super NES, Nintendo 64, Nintendo GameCube, GameBoy Color, GameBoy Advance, Nintendo DS, PlayStation 1, PlayStation 2, PSP, and I don't think I have enough space for any more consoles.
And even if the PS3 reduced it's price from £400 to 20p I still wouldn't buy it, I'd leave it in the bargain bin next to some unwanted controllers.
EDIT: The rest of this post has been deleted because I can't be bothered to argue about games consoles anymore.