IT CAN'T CRASH, IT WON'T PUT YOU ON HOLD, AND IT NEVER TAKES LUNCH BREAKS.
Your computer screen freezes after hours of work on the proposal due to your boas at 7 A.M.
You try to save a masterpiece graph, and your computer reports "insufficient memory."
You need a copy of your résumé for your interview in an hour, and the printer is printing in an alien language.
Your computer "crashes," and you haven't got a backup.
If you've ever used a personal computer (and who hasn't), you know...