Comment by samatman

Jobs loved excellent user experiences, and, rightly or wrongly, saw walled gardens as an important part of providing them. Sometimes.

The counterexample is the iPod, with its advertising slogan "Rip. Mix. Burn.". The first iPod used Firewire and was Mac-only, every edition since then used entirely industry-standard technology, USB and MP3. The value proposition was, as the slogan illustrates, easily taking your CDs and putting the music on the iPod. That too was in pursuit of an excellent user experience.

Later, Jobs fought the entire music industry for the right to buy digital music, not just rent it. And won.