Argh... answer me this.
1) Do the vast majority of cases "stop" at the circuit courts and go no further?
2) When a case goes no farther, where it stops is the final arbitration is it not?
3) Being that the vast majority of appellate cases on the federal side stop at the circuit courts, that means they have a crap ton of "final" arbitration power.
While they are technically not the final arbiter, they are in actual practice for most cases. It's a colloquial joke in most places that the buck stops there, thus the joke about circuit courts being the "supreme" court in most case. This very subject was even discussed on one of the shows on NPR. I think On Point had the discussion when they were talking about the current phone searching ruling going up to SCOTUS to be heard. The fact that you've never heard the joke about calling the circuit courts "supreme courts of their area" means you don't get out much do you?
I didn't call the circuit court a Supreme Court in the official sense in my post which you decided to somehow make an argument about. Go re-read my original post and realize how dense you've been.