The PC/console debate is about as pointless as it is endless. They are two different demographics, with a degree of overlap that has been vastly increasing since the PS3 and 360 were released. Most of the big mainstream PC releases are published for consoles, and in the case of the 360, all of its big exclusives are eventually ported to PC.
In this respect, ithe 360 is the least "necessary" console of the three current, if the gamer has a decent PC capable of outperforming the 360. But... one of the main reasons for playing on the 360 is the online community specific to the platform. I'm referring to RL friends who game rather than random match ups. But this is enough for many to use the 360 before the PC.
The PS3 will always have its big exclusives that will never see PC ports. Wii or 360 exclusive players or PC players can say what they want about not caring about these titles, but the louder the protests, the more likely it's an issue of pride and envy rather than simple personal tastes.
The Wii will always have games that rely upon the motion control scheme and simple won't port well or at all to traditional controls. Imagine Wii Sports with a mouse and keyboard. No point at all. All those first party Mario releases will never be seen on any other platform, and even if they did, without the controllers, it's the difference between RE4 or MP on a pad vs. RE4 Wii or MP3.
The Crysis argument is getting old, and largely an issue of hardware envy. I played the demo (that plays fine on a PC at 1280x720, high visuals, 8xAA that cost about the same as a PS3, 360 and Wii combined) and honestly, as groundbreaking as the visuals are, the game itself is not compelling enough for me to want to play through the rest of it. I haven't paid $40 (which is ridiculously cheap for a game of this quality) to play it, because beyond the visuals (no point in even arguing that it doesn't look better than any game before it on console or PC), it just didn't pull me in.
PS3 port for Crysis? Even if it looked like Uncharted, it still wouldn't play as well, and the story wouldn't be as compelling, partly because the characters of Crysis are completely wooden. The vast majority of the Crysis experience lies in the graphics. If you're not playing on a rig that can optimize them, what's the point? The underlying game itself really isn't that great.
But as it's already been said, nobody "needs" anything when it comes to video entertainment.
I definitely didn't need to pick up a Wii, but I wanted to try Wii Sports then examine and break down how the control scheme worked to see how applications could apply in the future.
I already had a PS3 at that point, which was seeing plenty of use, but the dearth of games prior to late Q3 2007 meant that the only PS3 games I was playing were Resistance and Motorstorm. I bought some real clunkers before more games actually worth my time were released.
So it saw heavy use as a media player for BRDs and upscaled DVDs, plus some PS2 play time. But it was also my reason to buy a 1080p display, which has been worth every penny. I even PC game on it.
