Quote:"...being that there is felt a greater need for the security features in commercial settings."
As far as I can see, at least with the computers I deal with, its the home users that need SP2 more than commercial users.
Commercial users are generally behind hardware firewalls, spam filters, antivirus on servers and clients, and IE lockdowns.
Home users =may= have a hardware firewall, although generally they go for a free software version, and usually have antivirus (but don't necessarily check it regulary to see if the dat files are up to date) and have no IE lockdowns. This weekend I've cleaned 3 of my friends' computers of everything from Cool Web Search to Netsky to Sasser and Bagle.