A big reason for this is that what Apple does is very, very _hard_. It's really hard to build physical objects with design good enough to be featured in museums

A big reason for this is that what Apple does is very, very _hard_. It's really hard to build physical objects with design good enough to be featured in museums. It's really hard to build your own software ecosystem, from operating system to software distribution to entertainment services. It's hard enough just to do them; it's extremely hard to be great at them. Even if other companies _wanted_ to replicate Apple's way of doing business, it's like Paul Graham pointed out in his Great Hackers essay: you have to have great people at the top to know how to identify the great talent below that actually dooes the work. Excellence has to permeate the entire organization. Do you see that coming from Samsung, HTC, or Motorola? They clearly don't have the capability, so they get the software from somewhere else, and then make it worse by adding their own differentiating layers. Google or Microsoft can obviously make the software, but, unfortunately, they choose not to make the hardware, and in my opinion their products suffer for it.