I think for the average 'Home' user They are just not going to use this .
For the computer 'geek' yes (although there are plenty of free Linux servers about ) and if you know what you are doing you could do multiple updates without WHS.
I designed a LAN, obtained free computers and then set up a network for our local charity run school (at the cost of £0 ).
I then was given a 'HP Netsever 2000' I set this up as a PDC and had W2K Adv. server running with WSUS to do the updates.
I had all this system running and handed it over to them to look after before I ended my free help to them.
The Headmistress ask me to take the server away as it was far to complicated for them to run and look after .
all the hours / days / weeks I sent learning about Win server and all the configuring.