Even if I wasn't an iOS developer, my other two jobs are Audio Production/editing and Video Production/editing.
While I could almost happily toss Final Cut out the window (we all know what a disaster the FCP7 -> FCPX transition was, and my friends in the industry tell me Premiere is where it's at right now), I am highly, highly dependant on Logic.
I've been using Logic in some shape or form for more than a decade, I picked up my first Mac Mini G4 in 2004(5?) and proceeded to learn Garageband inside out and backwards, got all the Jam Packs (which are now included in Logic, they used to be $99/apiece and now all 6 are included in Logic for $199...go figure) and got completely used to making music this way. (I moved to actual Logic from GB in 2008-2009.)
I've tried Ableton, and can't get past it's convoluted UI and complete lack of bundled instruments (Logic comes with more than 50GB of included content, and recently added a phenomenal new synth called Alchemy), Pro Tools is expensive and almost requires better than top-of-the-line Mac hardware, etc, etc.
The amount of time it would take me to switch, and learn another DAW, after 10 years of experience, I'd never get back.
I can open Logic, pick up a MIDI instrument, select some of the phenomenal built-in sounds, get a USB mic and have a freakin' awesome track down in like a half-hour.
Possible with Ableton or Pro Tools? Of course. But I'm not about to throw 10 years of experience out the window.
Combine that with xCode and it's iOS-specific toolkit, Final Cut (which I'm finally used to) and I get this really shitty realization that I'm going to be stuck with this software for a long, long, time and am basically just at the mercy of Apple's business decisions.