I've taken Ubers in at least 7 countries, many of which have had a cash option (India and Vietnam), neither of which I took up. The average uber driver will have considerably less cash on them then the average cabbie.

> No payment is made in the vehicle, so faster exit times.

Only if you pay in cash.

> Uber uses any credit card, so your boss can pay for your ride without the need for separate expensing.

Uber supports having both a business and personal profile, which you can change before or during a ride. Every business uber I take has the receipt sent directly to my work email, and charged to my work CC.