You basically said in one sentence what I've been saying. +1
Samsung simply offers a larger profile of devices that cover a range of different needs. Apple doesn't. That's why when Apple releases that one upgraded iPhone, and it doesn't match up to what people want, they are criticized more harshly for it.
Whereas if Samsung releases that one upgraded Galaxy S, and people don't like it, those people can (if they insist on having a Samsung/TouchWiz device) can go to the Note, the S-Mini. It's this wonderful thing called options.
Even if Samsung only offered the Galaxy S as their only smartphone, people would still have a perfectly legitimate reason to react more favorably to their modest upgrades than to Apple's upgrades. And that's because the Galaxy S already has and does so much more than what an iPhone can do. It genuinely is harder for them to keep adding new things each year.
But of course, that isn't even the case.
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My mistake. I mean whatever that "faux" aluminum look is that the S3 uses on the sides. That really cheapens the device, in my opinion. And I hope the S4 doesn't do that.