• You don't have to "activate" Mac OS X.
• Apple hardware is top-notch and built to last.
• You can copy Mac OS X onto multiple computers.
• Hardware and software integration is excellent.
• Productivity applications for Linux are free (NeoOffice/J).
• You can look at the Darwin source code to learn how Mac OS works.
• You can read your email on a Macintosh.
• Safely and securely.
• You don't need a virus checker under Mac OS X.
• File formats are not proprietary lock-ins
• Mac OS X is very, very, very stable.
• The Macintosh community has not broken any monopoly laws.
• The Macintosh community has not played dirty tricks on competitors.
• Mac Os X runs well on older Macs.
• In 2006 Mac OS X runs on Intel and PPC chips.
• Remote terminal software (VNC) is available for free.
• A very rich variety of software is available for Macintosh.
• You can write your own programs using free developer tools.
• For math students you have the most excellent Grapher.