This just showed up. Some interesting points here about what some other toll facilities cost.
Almost always, bridge tolls cost more than highway tolls per mile. In most cases, the bridges/tunnels have their own police department. In most cases, the jurisdiction boundaries run a lot further away from just the bridge/tunnel mentioned.
In the PANYNJ's case, they have multiple buildings and structures. The PANYNJ runs a bus terminal that serves 8,000 buses and 225,000 people every DAY with a complex ramp system that gets most buses to and from the Lincoln tunnel in short distances mixing with normal vehicular traffic. A lot of this is supported with bridge/tunnel tolls.
The PA Bus Terminal had a terrorist attack occur underneath it today, shutting it down for a whole 6 hours (and while it was reported that no activity was occurring for a few hours, I could see buses rolling from it just an hour after the attack). VDOT simply tries keeping traffic moving at 55 mph. The comparison is almost incredibly silly, because it looks, incorrectly, at very, very generic numbers.