The first one is blatantly false (Any optimizations are inside of the OS itself! As long as you use the right hardware ALL of the optimizations still apply!) and the other 2 are included with a hackintosh. The 2nd one also applies to regular PCs. I don't even know of any truly apple-specific technologies, so if you've got some examples go right ahead (iCloud is not an apple specific technology). All of the things I mentioned (OneDrive, Google Drive, Mega, Dropbox, etc) all have apps for every mobile device out there, including iPhone and android, all kinds of PCs (Even OneDrive, which is microsofts product, has a version for macs.), and some even work on TVs. You're basically paying $3000-$4000 extra for a nice case and slightly improved cooling.
All optimizations are not in the OS itself. While Apple certainly doesn't make any of their own parts, they do a) pick parts that work very well together and b) optimize their physical performance within the build. Anyway, I was more focusing on the homemade computers part; I should have clarified. Most people, when building their computers, know enough to know how to build them, but often not enough how to make a
good one. And it is very possible to choose two parts that are perfectly
compatible, but not very well
optimized.
The second one does not apply to regular PCs. One thing that has been bugging me recently about my iPod is that it asks me if I want to "Trust this computer?" when I try to use it when it's plugged in (PC, by the way). I never had that happen when I was using a Mac. While I certainly don't want to spend the time coming up with a list, there are several reasons why Apple devices are, in general, just more compatible with Apple computers. I would assume that would just come to be expected. Not to mention (although I did forget to mention this myself), but Hackintoshes can have their own special set of issues as well (such as device interfacing).
There are some Apple-specific technologies that simply don't transfer well. Take, for example, the Thunderbolt connector. Very much is it Apple-specific. Fairly certain things like Time Capsule and a few others are, too. Now, of course, who knows whether or not he would actually use any of these technologies himself, but I'm trying to look at this from an objective standpoint. I personally wouldn't buy either one with my own money. I could very easily take a stand and list the things he would lose access to if he didn't go PC/Windows. But I'm not going to because he has clearly stated that the decision is between these two choices. Now, it is my sincere hope that some of you people will understand that when someone asks a question about something, they're looking for an answer, not a beat-down.