Earlier quoted context omitted.
> still much more of a hassle That's when everything works correctly. What about when the power goes out and the card reading device stops working? What about transaction denials due to bank mistakes (or predatory policies)? Having the option to pay with credit/etc is nice, but the failure modes can be nasty.
I've had the pleasure (?) of going on vacation without notifying the card company. Because a hotel was late with a correction to their charge, that showed the card in use at two places at once, so they shut it down. While I was on vacation. That got... uncomfortable. Fortunately, they only shut down my card. My wife's still worked, and we were able to proceed. It made for a more stressful vacation, though...
We had to cancel the BofA card that I had.
Fortunately our CapitalOne card used different numbers and we were able to keep traveling without a lot of hassle. For our next trip, we're going to make sure there's no number overlap.