Earlier quoted context omitted.
Regional price discrimination is nothing new, but I haven't heard of making it buyers' choice before - why aren't you using IP or some other method of determining region? The obvious answer is that it's defeatable, but if the alternative is then to make it a radio button (trivially 'defeatable'), that's clearly not it.
It's not intended to be non-defeatable. It's intended to recognize enormous disparities in income worldwide (and sometimes even within the same city). The user/buyer who elects to use a one-time payment gets to pick their own price, too: the default is pre-seeded based on OECD data on the cost of a mid-prize restaurant meal for two without alcohol, combined with IP address. Our motto has been (thus far): it doesn't m…
What I'm not clear on is why you don't work out the correct region & pricing on the customer's behalf; why you leave it to honesty?