My Dad was a toll collector for a brief period during the '70’s recession (despite having a degree in chemical engineering). He said it was the worst job he’d ever had-- worse than the stint involving roofing tar. It’s broiling in the summer, freezing in the winter, surprisingly filthy, full of assholes and mind-numbingly boring. It’s 8 hours alone in a box on a highway, where you get to play chicken with cars every time you want to piss. The money was good, but he jumped at the first job he could get to get away from it. I got the impression it’s kind of like garbage collection-- it’s an unpleasant job with no other redeeming qualities, paying people well is the only way to keep it staffed, assuming you don’t want call-center turn over. (And because it involves money, you can’t go to the other solution for “staffing jobs that suck”, illegal immigrants)