Why Buy a Macbook?

-No registry clutter
-No startup clutter
-No toolbar clutter

Little to no virus risk

iMail - a great Outlook alternative, integrates well with Gmail
iCalendar - same as above plus supports syncing mulitple Gmail calendars

iCloud - great way to backup and sync your Apple devices (requires Lion OSX)

iLife - comes with New Macs / only $30
iMovie - Simple but full featured video editing
Garage Band -  Simple but full featured music production and editing
iPhoto -  Simple but full featured photo editing

Magnetic power connector - Prevents power jack damage

AppleCare - Excellent and affordable warranty and support directly from Apple