Only Apple doesn't wait for Apple to show them the way.
As much as I like Apple, they rarely are the one's blazing into unknown territory. Most of their success are not from new products that never existed, but improved existing ones.
So to put another way, Apple does wait.
No knock on apple for this approach, as they've been wildly successful, but you can't say that Apple has been one inventing new technology and the one blazing the trail - (for the most part).
mouse/gui interfaces - xerox
iPod - mp3 players existed
iPhone - wince phones
tablets (newton is probably an area where apple did blaze a trail),
Apple Tv - (chrome cast, roku etc)
Again I'm not down on apple, but the romanticized version of apple inventing everything is incorrect. Their M.O., has been taking an existing product, and changing/configuring/improving it a way no one thought of. For instance the iPod - it wasn't the first, MP3 players littered the market, few if any used hard drives, or even a screen and I think none included an app to legally buy and upload music (iTunes). This was a revolutionary move on Apple's part, their phone as well. Hell they were not even the first to have an app store on the iPhone.
Edit reason: clarification