A good paragraph to ponder - link.
"When talking bricks and mortar in the electronics space, it’s impossible to overlook Apple stores. Now, the magic isn’t in the stores' simplicity. Or necessarily in the newest devices. The genius is, of course, in the Genius Bar. Apple stores are constantly overflowing because consumers don’t fully know what they are doing with the expensive, high-tech items they're gripping. They need advice, guidance, and education to further their experiences. Apple’s ability to upsell consumers through the Genius Bar is remarkable largely because it isn't technically on display."