Logic was a HUGE investment for Apple (Team, Product, and code) from Emagic, as well as FCPX. There is just too much of a HUGE market for these products and the industries.
Apple was VERY intelligent and forethinking regarding these products, one of which spawned two sister products (iLife's GarageBand with John Mayer introduction, and iOS GarageBand thereafter).
The key with Logic:
Existing market,
Apple focused with top producers and DJ's in various genres and with audio engineers responsible for top end concerts! Most likely Apple also worked with record labels - notice iTunes launch timing along with EMagic Logic upgrade to 64-bit native during OS X Panthers launch?
GarageBand ... Jobs must've had numbers related to how many developers showed up to previous WWDC's along with expected WWDC during it's planned launch and had a very talented guitarist play live [Rock'N'Roll born in the USA and is STILL the top played and sought after instrument by North American's over half a century now if not more or globally.
The Key with FCP/FCPX:
Great competition, great launch features.
Jobs on the Disney Board, and investment backer and board of Pixar Films
^ great clout to tout and show off performance (Mac's and the software) against Adobe Premier and other competing software. Logic Soundstage to work on soundtracks and import into FCP.
Lacking in Aperture:
There is no "top dog(s)" of photography recognized globally as house hold names.
Music touches everyone's life, Photography not so much - I loathed and mostly still do loath taking pictures / selfies because I've always been so traditionally non-photogenic nor good at it.
Debut of cellphones [Dawn: Ericsson/SonyEricsson T68m/T68i respectively with accessory], then exponentially rapidly advancing smartphone camera's [Nokia N92/N82 featuring Carl Zeiss lens] showing competitive quality and end user manual controls vs say a $650 Cannon A82 camera back in 2003.
Pretty much everyone 5 years ago was a 'pro' photographer with iPhone - Apple showed a deafening statistic showing Flikr had more pictures uploaded from an iPhone than ANY other camera period! THAT was the clincher.
How to you sell a professional camera application on the desktop that the majority of users DON't use or own the only computer to run it?!! Huh?! Yeah it was a bad move.
* Apple should've
a) made Aperture cross platform like iTunes upon initial launch\
b) offered a discount to iPhone owners via serial number or proof of purchase code on the cheap to get software mac/pc.
^ it was it's own self defeat as most iPhone or competing smartphone user used iPhoto or an iOS app to modify pictures and upload.
Maybe we'll still see major improvements in iOS native camera settings or from 3rd party for desktop.
Now now, there there. it's ok ... maybe over to another software ... here is a tissue and some cookies and milk. Sorry the booboo is painful ... but Apple just didn't get enough sales to warrant the softwares further development.
Read above.
Ask ANYONE the following:
Their favorite Song,
Their favorite Songs,
Their favorite Genre,
Their favorite paiting,
their favorite picture,
Do they have said song(s), genre's on their phone?
Do they have their favorite picture/painting/sculpture on their phone?
Have they edited such picture(s) on their phone vs computer?
Have they edited such picture(s) online service or (camera specialty store service: paid)
- what computer software was used?
-
Then finally to the latter two questions HOW did they source those items: from their phone or store?
Let's increase the wager for 100-5000 people, let's make a thread here

I'll bet EVERYONE you ask the top 3 questions will have an immediate answer in 10-15 seconds!
I'll bet EVERYONE you ask about the painting & picture question, painting will be delayed or will not have a succint answer it'll be an unknown. I'll even assume that with the picture the source for their favorite(s) pictures was done on their smartphone over the last 6yrs, and a camera longer than that.
I'll bet you those that edited their pictures have less than HALF the answer than those of song(s)/genre answered results.
I'll bet you those with pictures, over 65% edited them online or on their phones or both, maybe 10% store paid service (brick and mortar).
IF this was a conversation about how many people play or own an instrument vs those with a camera (including their phone/smartphone) I'd NEVER even think of challenging you.
Music touches EVERYONE's life ... even before they can comprehend conversation, see anything beyond vague light or properly define sounds/voices of their parents. IN the womb your heatbeat is the very first rhythm and it transcends it your life. The artistic value - which I incredibly respect as a fine talent - unfortunately is not so ingrained into everyone since, at, or before birth.
I look forward to your reply though ... could be a VERY interesting converstion which I could be enlightened.
Cheers.