For those in media creation, Apple computers have factory color calibrated monitors, so what you see on their screen is what most people will see on their screen. You have to pay a ton of money to get that on other monitors, or by equipment to calibrate your own monitor. When you factor in the monitor, Apple computers really aren't that much more expensive than a Windows computer with the same hardware.
A lot of media software is designed to run on Mac OS, and has a lot of quirks in the Windows versions. If you've ever tried to use Microsoft Office on Mac OS you can see what I mean.
Having the hardware and OS designed by the same people eliminate a lot of compatibility problems, and make the OS a lot lighter to run.
The OS is also intended to be simpler. Apple prefers to just have one way to do something, so users have to adapt to how they think things should be done, but it makes for simpler interfaces.
On the other side though,
Personally I hate how hard they are to repair. It wouldn't take them a lot of effort to make their hardware a lot easier to deal with, especially if they stopped using tape and glue to hold so many things together.
Their products are actually designed to fail with time, such as laptops having the exact same design flaws through generations. The designers know the flaws are there and don't bother to fix them.
They drop support for hardware pretty quickly, trying to push users to upgrade rather than keep their devices.
The thing I hate most though is if you Google ways to fix problems, usually all you find is forums filled with people saying "I have this problem too, I hope Apple fixes it"