The advantage of TCP over what? ipx or hot seat? Well if you have lots of time on your hands you can play over the net
I think a lot of people think they want it now, but would get very bored actually playing a game like this over the net. Hot seat can be a lot of fun, cause you are there with your friends...and as memories of my MOO2 ipx days come back, I hope if MM adds ipx they do it a lot better