Hi Jerry Aaron This is a big one, as someone staying in a Country in Africa myself (Nigeria to be precise), I totally understand this. Now one good thing about web monetization from this angle is that, the current web monetization provider we have, which is Coil is intentional about users getting complete value out of a month subscription, so under no account would a user have any reason to subscribe twice in a month, irrespective of the amount of content they consume; the $5 would always be enough.
However, from the angle of parity purchasing power for the user, the $5 I believe is constant for all users.
cc Chris Lawrence Bring my friend from Grant for the web here to share more light on this.