Gonna have to agree with this guy. A home user SHOULD want all the things the other guy listed but most just couldn't care less.
Update bandwidth savings? Windows updates are like 100MB on a bad month, how many computers do you think most regular users have? Even if they have 5 that needs updates that's only 500MB, you think people want a server to help them save 400MB a month?
Ask anyone using cellular broadband or a metered landline broadand plan and they will tell you that saving bandwidth, even 400mb month, is a HUGE priority.. I know I do every day at work.