It's not about serving them, but appealing to them. Even the hypothetical situation where Wii was not created, and instead three title like a Mario Galaxy clone, Wii sports, and Wii Play appeared on XB360 such that they would be just as much fun for those same people who bought those games on Wii. They would not have sold anything like as well as the Wii equivalents. Existence of fun titles is not enough in itself to attract custom, which is the point to marketing. You can have the best product and sell very little, while a rival sells bucketloads of an inferior version because they reach the market with the message. Three perfect casual titles in amongst a sea of core titles will not communicate the same 'casual fun' of those three titles on a box with no core games.Yeah, I don't generally think the fact that Kinect has 3-4 clones each of Wii Fit, Wii Sports and Just Dance means it better serves the casual audience.
Going back to my fishing analogy, there's no point going after a worm eater if you're seeding the water with bread - you'll just attract the bread feeders. A 'core' platform will attract shoals of core gamers, and the casuals will see them and stay clear. Broadly speaking.
And has it sold many millions and created the idea of PS3 as a casual platform? I believe not. The image of PS3 is different to the image of Wii, so people who would like EyePet end up overlooking it because they haven't got an eye on the paltform. If there's no market awareness, the products won't sell even if they're perfect for the market - if only they'd actually try it. And Sony continue to communicate a mixed message. People are becoming aware of Kinect as the 'new thing' to check out, and they'll be able to go in store and try it. Kinect has an aura of originality. Even if Move offers a better 'casual' experience that Joe Public will enjoy more than Kinect, or a more rounded whole-family experience, the interest to give it a go seems lacking given the lack of non-gamer noise surrounding the system. And without casual interest, casual titles won't sell so there's no point making them, in which case there'll be even less reason for casual interest, and the platform will end up a core-only experience.Eye Pet has also been in development for a hell of a lot longer than something like Kinectimals. It also uses augmented reality, has a unique aesthetic and appears to offer far more activities to play around with.
I need only point to EyeToy to show how a lost message can kill off your perfect platform. Which was Kinect-like in freefom, Wii-like in originality, and fizzled out. The PS brand had its shot, but now that's been and gone and is old news, camera stuff on PS isn't attracting the same interest that EyeToy did, leaving the rivals to offer something new which garners all the attention.