[mg]

One could say that a "rush hour ride" is a different service than a ride at a less crowded time.

Hotels in a small town might have better reviews than hotels in New York. But if you want to stay in NY, you compare between the hotels there. So the hotels in the small town do not have a benefit of their "manipulation" to offer rooms in a less crowded city.

[gabereiser]

But in this case, they are comparing the same trip at a different time and traffic congestion level. Make this the “difficulty multiplier”.