i THINK they are the same tickets but the Club level comes with a suite also...i.e. catered food in a box several levels up. I'm not positive you should really call them though.
However, I did sit on the court at the Bobcats/Pacers game on New Years eve, five feet from the Pacers bench....I see the game completely differently now. Totally worth being able to talk to and hear the players talk among themselves.
Oh and I had a suite too.....decent food and free beer, not bad but not sure I would pay an extra $125 for it