Regional Pricing and Payment Options Meta

This would be awesome to have! We can take a page from how steam handles regional pricing.

1. Have a optional country field for users which can be changed very infrequently, like 3 months or so. This is completely optional and opt-in for all users. Without this we plutonium will fallback to global pricing.
2. Only accept regional payments in the country's currency using local payment cards or other local payment instruments.