I live in Denver too.... I sometimes see N fares for hub jump round trips - particularly ORD and LAX on more distant weekends (usually $130-$140 range)... I usually snag a few of them when I can. They are always great spots to visit, and I have friends there. But this is also a good way to get out of Denver to stage a MR, especially a LAX based one where there are often some good deals. Buy the staging trips early, and then watch for the MR that coincides. This worked for me in booking the LAX-BAH run.