If Nick is gone, I have a feeling that he quit instead of got fired. I bet there was some sort of disagreement between Artie and Nick, and Nick told the bosses that it was either him or Artie. Obviously they stuck with Artie and Nick quit. Unless there was some major offense, I can't see them firing him. He's been telling the same racist jokes the whole time, why would they decide all of a sudden that it was a problem? As far as cost cutting, why would they have gone through all this trouble and money to get the show to where it is and then just pull the plug? As far as we can tell, the show is successful when it comes to listeners.
So if Nick's gone, for me, it'll suck. I've enjoyed their partnership and it was almost always funny. I will continue listening to the show, especially if they get the right person in there with Artie. If it's that Brent fruit or someone like him, I might not listen religiously as I did before. Someone mentioned Norm, that would be perfect.