My group had one player who almost never showed up, citing that he had to stay home for various reasons on our usual day. I asked if he would be able to play if I put together a remote rig so that he could Skype into the game so that he could attend, virtually, and see what was going on via Maptool. He said yes. I put together a computer with the monitor sitting at a space at the table and with a webcam, so he could feel like he was there. I got a cheap conference phone setup that could connect to the computer as both speaker and mic. Everything was good to go. This was almost 15 years ago now, so it was no easy feat.
He never played again. Haven't heard from him in more than a couple of emails since.
One of the other players did end up using it, a few times, when he couldn't attend in person.