The point is, people get too enamored with Apple and lose all sense of perspective. The notion of Apple buying out Samsung is so absurd that it provides an almost scary demonstration of this effect.
Samsung Electronics is a publicly traded corporation and the market value is what it would cost to acquire them (plus some premium). This is sort of academic because it would be a dumb use of Apple's cash to acquire them and probably wouldn't be approved.
So is Apple, and Samsung has nation state support it can use as leverage in a buyout (Since we're trading stupid buyout scenarios)