Hi Dave: First, thanks for the erudite reply. Just trying to help ya' man. Sometimes, in networking, especially Microsoft networking, you have to take 2 steps back to take 1 step forward. I agree with your assessment. Sounds like you are not doing stuff at home that really requires REAL networking capabilites, such as a Home Business or using your home network for Telecommuting while working at home for a Fortune500 business as I did.
I believe your question about why you even need the Homegroup is Rhetorical, right? Microsoft took marginal peer-to-peer LAN network sharing and updated it. Did you ever use 1980s microsoft networking? aka: LANMAN? Workgroups worked ok, but it was never a premier product. You're solution beckons back to the days of "sneakernet" in the early 80s; everybody wanted to do networking, but few wanted to spend the time to understand it and do it right. Hence, the development of Homegroups. If you want to go back to using external hdd's, discs, and flash drives to get your data from point A on your network to Point B, more power to you!
As I recently moved to a Rural area, where all the business AND home users insist on using M$ networking, and when they try to upgrade from Workgroups to Homegroup, it's ALWAYS a disaster! Fortunately for me, coming from 30+ years of network experience, this means one, thing; money! Thanks Microsoft for making a new p2p networking platform that often requires expert networking help to sort things out.
BBJ