That's true, but it really only takes one missing feature or annoyance to make Jailbreaking a consideration. Case in point: When I plug my iPhone 5 into my car

That's true, but it really only takes one missing feature or annoyance to make Jailbreaking a consideration. Case in point: When I plug my iPhone 5 into my car's USB port, the Music app's display changes to an "Accessory Connected" splash screen. I can only control my music through my car's awful dashboard interface. Jailbreaking allows me to disable that splash screen. Other things like 5 column springboard/dock, FakeClockUp (reduce or speed up slow animations), and BiteSMS (Messages app replacement that can be used on the lock screen), are just minor interface and functionality tweaks that, together, make my jailbroken iOS6 a far superior UX than iOS7.