I've run a game server for more than 2 months on my personnal Internet connection.

I used to host Starsiege (not Tribes) for me and a few friends. At least three of us were on it every weeknight for over four months, and when all eight got together on friday nights it was a blast.

Obviously this was the first four months after I upgraded from 56kbit modems to DSL, freshly available in my area, circa 1998.