Why? If I'm running late to an appointment I will be willing to pay more than someone who is heading home from work to unwind and is in no particular hurry.

I love the concept that my fate is in my hands. It's not a matter of skill or chance in hailing a cab. I'm given all the information I need to make an adult decision and get to choose if it is worth it or not.

Sorry, rereading that some of the language gives a condescending tone which is very much not my intent.