When you guys move on to NWN II, I'll play. I think the voice thing sounds like great fun!
Me and a friend started calling each other when we'd adventure in WoW, and it really was nice to be able to focus on the battle instead of trying to communicate with her via keyboard. I was a little wary at first, but before long we were having a great old time, and it was very difficult and undesirable to go back to just keyboard.
But everyone has their hang-ups and preferences, some prefer total ambiguity when dealing with anything online, and that's understandable.