The Economist has a fascinating piece on what makes Samsung’s strategy so effective. From Samsung: The next big bet (my emphasis added):

Samsung’s successes come from spotting areas that are small but growing fast. Ideally the area should also be capital-intensive, making it harder for rivals to keep up. Samsung tiptoes into the technology to get familiar with it, then waits for its moment.

When it pounces, the company floods the sector with cash. Moving into very high volume production as fast as possible not only gives it a price advantage over established firms, but also makes it a key customer for equipment makers. Those relationships help it stay on the leading edge from then on.

The strategy is shrewd. By buying technology rather than building it, Samsung assumes execution risk not innovation risk. It wins as a ‘fast follower’, slipstreaming in the wake of pioneers at a much larger scale of production.

This is in direct contrast to Apple’s strategy, which is to look for a mature, stale market, and then innovate to deliver a solution that’s several orders of magnitude better than what incumbents are selling.