One problem is software updates. Both the PC and the Apple TV need to be kept in sync. Right now both are at current SW revisions, but the Mac no longer can sync to the Apple TV. Even deauthorizing the library and retrying does not work.
I go through this routinely and I asked myself why? I don't do this with my toaster or phone. My amp doesn't need to be updated or deauthorized. I push the on button and it works.
There is no FAQ for my toaster. Apple used to stand for simplicity in use, which was the advantage they had. While I clearly can figure this stuff out, I have no interest in making a hobby out of keeping my equipment functional when it mysteriously stops working. I just have too many other things to do.
That is why I am looking for other solutions that do not need the maintenance or baby sitting that my current hardware has.
But when my toaster starts to burn half the bread, I can't download a fix....
Actually, more and more things DO either need or have the capacity for updates. Most AVR's and processors do offer updated features, as do PS3, Blu Ray players, Xbox, my Epson and JVC projectors - the list is growing, not shrinking.
I would agree if upgrades were cumbersome of flaky - they would introduce more troubles than they'd purport to solve. But Apple makes upgrading a breeze, and you get the benefit of fixes and new feature enhancements. The Apple TV will tell you if there is a firmware update, and Apple Software update will keep your Mac or PC automatically up to date with iTunes, as well as iPod or iPhone firmware. Short of choosing a closed system that was never upgraded or improved, I'm not sure how much simpler it could be.
Conversely, you could ignore interim updates until you were "forced" to perform some major update, and both your devices would work largely in sync for very long stretches. My Mac mini has been running uninterrupted for several months, save for a few restarts for normal updates. iTunes launches automatically, so there's no intervention required. If you're having more quirky issues, perhaps there something particular about your setup that's causing troubles.
If you NEVER want to see an update or a reboot, hmm, I don't know. Every Crestron, Elan, HomLogic, Control4, Escient, etc. system I've seen has needed reboots or updates.