For me, owning a Mac has a much lower cost of ownership in terms of time. I boot up the computer and it's ready to go.

I don't need to reinstall the OS or download an uninstaller to remove bloatware. I don't need to install antivirus (yeah, this one isn't required, but the reality is that there is much more malware targeting Windows). I don't need to wait for Windows Update to finish before my computer shuts down or boots up - these are particularly painful. I don't need to worry about programs scaling to a retina/high DPI display. I don't need to spend time reading articles about how Windows 10 is tracking me and how to prevent it. I don't need to worry about my laptop breaking, because if it does, I'm a genius bar appointment away from getting it fixed. If my Samsung laptop breaks, I need to ship the whole thing, likely wasting weeks.

Not everyone experiences these issues, but this is how it feels for me. I made a very gradual transition to OS X - owning PCs, building PCs, using OS X on my PCs for almost a decade, then finally buying a Retina Macbook Pro.