> Let’s measure the “wealth” of an ISP by the aggregate wealth of its customer base You can't measure the wealth of an ISP by the wealth of its customer base.

> Let’s measure the “wealth” of an ISP by the aggregate wealth of its customer base You can't measure the wealth of an ISP by the wealth of its customer base. ISP businesses are very different in each country. In one country there could be no ISP-hostile regulations, low barriers of entry, a lot of competition, cheap labor, resulting in like $5 ARPU in urban areas and low margins. In another country ISPs could manage to monopolize the market with regulations creating a lot of burden for smaller players, resulting in like $20 ARPU and very high margins. In some countries it is also possible for rent seekers that provide infrastructure for ISPs to suck all the revenue, still allowing competition and leaving them with big ARPUs but low margins. I suspect the hunch in the title is right though. ISPs from the least competitive markets and therefore rich can afford and do deploy IPv6. While ISPs from the most competitive markets cannot afford bothering with IPv6 and since there is no demand for it yet at all, they don't deploy it. But if demand for IPv6 starts growing for some reason, ISPs from competitive markets will of course deploy it.