1. It's not five computers forever, it's five computers at any one time. I've reset authorizations multiple times (take a few minutes, once a year or so) without an issue. So, unless you are using five+ computers at once, you're fine.
2. Are you sure iTunes content is protected anymore? It's pretty simple to convert into MP3 if you'd like, but how is that a necessary thing at all?
3. More patches? You're kidding about this, right?
Having a limit of five devices is ridiculous in this day and age. Someone can easily exceed that limit with a MacPro, 2 iMacs, 2 MacBook Pros, iPhone, iPad, and then what? No music server, nothing, and two used devices without an iTunes music 'license'...
Patches? I wonder how many times iTunes has been rewritten. Apple, through their acquisition if Next, proved that you can 'patch' something and turn it into something else. I wonder if iTunes isn't the same 'kernel', with different shutters, doors, and plantings around the patio.
Regarding iTunes database, I have crashed the iTunes database several times. I have had to rebuild my iTunes collection several times, re-ripping each CD, one-by-one... For hours... And hours... I've had tracks disappear. I've had tracks refuse to import, like another thread in the iTunes section here.
It's rather stable, and I'm sure for the 'average user' it's just fine. I have gone in and edited the metadata through the iTunes 'Get Info' feature, and after this last major update, all of it disappeared. It *could* easily be more reliable IMO.
Is iTunes content 'protected' anymore? I don't know. I'd imagine that it's watermarked at some level, that wouldn't surprise me, but as far as DRM? Hmm... No idea. Still wouldn't surprise me if there were *something* there, but...
Still, I think iTunes, for the most part, is the best thing doing. Can it be better? I think yes. Could it be worse? It's getting there... The crazy stuff Apple has been doing to it is almost on the verge of criminal. They took an elegant sophisticated multimedia management package, and warped if into a bizarre experience from the user standpoint. It's also possible that it's just because I'm old, I have to volunteer that, but some younger people I know have complained about it getting mroe and more complex, and less and less 'intuitive'...
But you are free to disagree.