We did the eastern states a couple of months ago - lots of toll roads but all of the ones we went on accepted cash. Are there toll roads that don't accept cash? If there are, what happens when you don't have a pass? Park at the toll booth at take a nap?
Having been through parts of Utah, we haven't seen any toll roads there so far.
Even though no asked, toll roads are a total rip off. They get high per gallon road taxes, probably matching federal money to build the roads, then the expensive tolls and they were some of the crappiest roads we've seen, especially around Chicago. A total rip off - what are they doing with all of the money, they certainly aren't spending it on the roads.
Bill