We have had unmanned and manned toll booths next to each other for years in Illinoise. If you have an iPass and go through unmanned then it is half price then going through manned booths. Everyone tells me how cheap it is in Illinoise compared to other states, and I have seen that going out east. Florida is still pretty cheap compared to the east coast!
The funny thing about science is that if you change one miniscule parameter you change the entire outcome to the way you want it.
