The best reason to buy a MacBook is that you need or prefer macOS to Windows. The operating system is stable and easy to use, but more important, it integrates well with iPhones and iPads—for example, iMessages and SMS messages sent from your Mac also appear on your iPhone and vice versa, and features such as AirDrop and iCloud make it easy to share notes, pictures, videos, reminders, contacts, passwords, bookmarks, and other data between your devices.