I had to travel on business to AWS headquarters in Seattle about 5 years ago. Around 10:30am on a weekday, I checked what it would cost for an Uber to the airport (not very far away). The price was going to be something like $30. I didn't hit the submit button yet because I wasn't ready to leave yet. About 15 minutes later, I added my corporate AMEX card on my Uber card, and suddenly the price for the same trip jumped to $140 or something crazy like that, and I was notified it was due to the so called "surge pricing". I believe the price jumped as soon as a corporate AMEX card was added, and not because of any real surge. There was not a lot of traffic around. I ultimately did NOT order the car because I felt like that was just plain stupid. And this wasn't Uber Black or anything like that. I closed the app, walked outside, waited about a minute or so to hail a taxi, which then drove me to the airport for around $12. TWELVE DOLLARS. Uber wanted $140. True story.