Ruthlessness. Apple did the same thing when the iPhone first came out with the higher end capacitive touch screens. When it was released, all the competitors

Ruthlessness. Apple did the same thing when the iPhone first came out with the higher end capacitive touch screens. When it was released, all the competitors raced to catch up but found that the supply was gobbled up by apple for years. If you compared any android touchscreens with apple ones for the first 3ish years the apple ones were night and day better. Apple is also willing to invest in technology in return for exclusivity for awhile.