There is something about Apple's ecosystem that keeps pulling folks back in. For me, I love being able to take notes in a meeting on a MacBook Air and then have them automatically show up on my phone. That’s just one of the benefits of iCloud. You don't have to think about it.
Meanwhile, Samsung has tried its hand at selling content (movies, books, TV, etc.), but it doesn’t feel nearly as seamless as the iTunes store. Most Galaxy owners I know never touch Samsung's Hubs, instead relying on Google Play or third parties. This is important, because when Apple is ready to enter the mobile payments game, iPhone owners should be able to use their iTunes accounts. Samsung is working with PayPal for mobile payments on the Galaxy S5.