Today, the copy protection consists of:
1. The installer phones home to see if your serial is blacklisted. If Apple can't be reached, you can install it anyway (unlike activation).
2. Serials are blacklisted with each point release
3. Offline update install packages are behind a serial-wall on Apple's website, but are accessible with the system Software Update utility, which does not check serials.
4. Logic Pro broadcasts its serial over Bonjour, and won't start if another system on the local LAN is using the same serial
This is by far and away the most lax copy protection system of any of the professional DAWs. The primary copy protection is that it's mac-only, and the people who blow $2k on a mac aren't likely to balk at a few grand on good software.
And yes they do care about controlling the users, they just use other ways to enforce that (appstore, hardware lock-in)
We can blame Microsoft for this but we should also blame the pirates. When piracy is hard and obscure it doesn't really hurt much. When these people go out of their way to create super easy methods of piracy and bring it to the mainstream they are forcing companies to react. They don't have to stop piracy completely but instead make it harder so the mainstream isn't so tempted.
Personally I rather have them invest the money they get from paying customers on creating more value for other people to buy their products than to create more "measures" against piracy. We all know that products with any form of DRM have a worse user experience than those exact same products without.
Apple’s Mac consumer software is ridiculously easy to pirate. You can download iWork from Apple’s servers and find out the serial with five seconds of light googling. iLife and Mac OS X don’t even have a serial or any other kind of copy protection. (They might be harder to pirate, though, since you have to get the DMGs.)
And now get this: The $29 Snow Leopard update is license wise nothing more than an update for owners of Leopard and Leopard only. But the disc will install Snow Leopard even if you don’t have Leopard. It would be trivial to test (the could even let you install to an empty hard drive – just let the user insert the Leopard disc once to test whether she has it) but they don’t do it.
Software is maybe three percent of their revenue. Why overly protect it if pirates will find a way (or just not buy)? They don’t care much about protecting their Mac software from piracy because they make their money with Macs, not Mac OS X.
That might change with the iPhone, though. Don’t expect this Mac policy to carry over.