It just puts the onus on Google!
"Google will always find buyers because a person is a person is a person to demographics firms"
Here is the thing, google's products are successful only as long as there is a need for them. With Fire's price point and the package on offer --- easy access to media and a brilliant deal, "google's icing products" are actually icing, that's it. Google will be forecd to make their apps available on Amazon's app store, just like they did on Apple's app store, otherwise Google will miss a very large segment of tablet buyers.
"After all, if we look at something from Amazon and pass it up, "
That is true only if you cannot do the math and reasoning, and are madly in love and are crazy for Apple and Google products. I suspect Google's offerings are only the icing on the cake, the real things win!