As previously said, we had a vote for Plug.DJ or TeamSpeak, Plug.DJ won by a couple votes. I'll try to find the link in a second, but.
In my opinion, I feel like having either or wont really matter as much since most current staff don't have the freetime to moderate either, so getting staff for both functions or either, will be a pain.
tl;dr I feel like we're too 'small' for it. (Even though if we get TeamSpeak it will be more used than Plug.DJ - but, in TeamSpeak there will be more abuse towards players.