Nowadays with so many people having high-speed Internet access and with applications like Apple's FaceTime, even the face-to-face contact is no longer a problem. I worked entirely at home for the last company for which I consulted, and home was either my own home or those of my children when childsitting for grandchildren and never had a complaint from my client.

I'm surprised that more companies aren't going to an essentially all telecommuting workforce, with a limited number of shared workspaces for those who may be in the office at any particular time.