vs my last 100 contactless payments: pull out the card, tap. Almost instant happy beep.
I once actually got stuck at La Guardia because of the chip/stripe divide. I hadn't thought to get enough US cash out in advance, and all I had was my Canadian CC and Debit cards. I'd used nothing but the chip on the CC for > a year and didn't realize the magnetic stripe was completely worn off!
I tried several money-changers and ATMs there, and even called my bank -- no options at all. I finally found $5 CAD in my backpack and changed it to USD for bus fare, then caught a local bus to a nearby actual bank, where they were finally able to use my ID and the card number to authorize an advance. It was a heck of a day.