Windows Home Server GM Charlie Kindel tells all on this TechNet Edge video, including the most important reason why backup in WHS rocks. About 8 minutes in he tells the story. Moral of the story:
WHS backup protects your data - but most importantly - it protects your time.
You are a "jeff" or an "oliver" - otherwise you wouldn't be reading this blog. If you have not yet checked out WHS, ding yourself and get on it today.